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ensimple/5440.html.txt ADDED
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+ Silk is a natural fibre made by the silk worm cocoon. Silk fibres are very strong and are often used to make cloth. The Chinese invented silk in 3000 B.C. and traded it across the world through the Silk Road because it was very valuable and costly .
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+ The cloth from silk can be made into rugs, bedding, or can be used to write or paint on. In the past, silk was used to make parachutes. The practice of growing silkworms for silk production is called sericulture.
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+ Most spiders make a natural fibre of their own that is also called silk.
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+ Silk that is made by the silk worm is made up of two main proteins, sericin and fibroin.
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+ Fibroin is the structural center of the silk and gives it its strength. It is made up of amino acids, which make the fibers strong and hard to break. The tensile strength is there because of hydrogen bonds. When silk is stretched, there is a strong force on these many bonds, so they do not break.
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+ Serecin is the sticky material which surrounds the fibroin and gives it protection from the outside. Silk is resistant to most mineral acids, except for sulfuric acid, which dissolves it. Perspiration gives the silk a yellowish colour.
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+ The soybean (or soya bean) is a plant with fruit called beans, from Eastern Asia. The height of a grown soybean is between less than 20 cm and up to 2 m. One soybean lives for only one year. Probably, it was originally a vine.
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+ Soybeans can be eaten or used to make oil, sauce, milk, flour, tofu and other foods. These soy foods have much protein, and many vegetarians like that.
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+ Soybean oil has a component of oleic acid that can be used to make an insect repellent.
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+ Also fuel can be made from soybeans.
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+ In 1997, 81% of all soybeans were of genetically modified stock. This means that genes were changed directly.
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+ In China, going back the ancient Chou dynasty soy beans were considered to be one of the five sacred foods.
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+ The Sun is the star in the center of our solar system. It is a yellow dwarf star. It gives off energy as light. That includes light, infra-red energy (heat), ultraviolet light and radio waves. It also gives off a stream of particles, which reaches Earth as "solar wind". The source of all this energy is nuclear fusion. Nuclear fusion is the reaction in the star which turns hydrogen into helium and makes huge amounts of energy.
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+ The Sun is a star like many others in our Milky Way galaxy. It has existed for a little over 4.5 billion years. It is going to continue for at least as long. The Sun is about a hundred times as wide as the Earth. It has a mass of 1.9891×1030 kg. This is 333,000 times the mass of the Earth. The Earth can fit inside the Sun 1.3 million times.
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+ Scientists think that the Sun started from a very large cloud of dust and small bits of ice about 4.567 billion years ago.[15]
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+ At the center of that huge cloud, gravity caused the material to build up into a ball. Once this got big enough, the huge pressure inside started a fusion reaction. The energy this released caused that ball to heat and shine.
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+ The energy radiated from the Sun pushed away the rest of the cloud from itself, and the planets formed from the rest of this cloud.
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+ The sun can also be used as a source of solar energy.
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+ The sun and everything that orbits it is located in the Milky Way. As the sun orbits it takes along everything in the solar system. The sun moves at 820,000 km an hour. At that speed, it still takes 230 million years for a full orbit.
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+ Since the Sun is all gas, surface features come and go. If the Sun is viewed through a special solar telescope, dark areas called sunspots can be seen. These areas are caused by the Sun's magnetic field. The sunspots only look dark because the rest of the Sun is very bright.
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+ Some space telescopes, including the ones that orbit the Sun have seen huge arches of the Sun's matter extend suddenly from the Sun. These are called solar prominences. Solar prominences come in many different shapes and sizes. Some of them are so large that the Earth could fit inside of them, and a few are shaped like hands. Solar flares also come and go.
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+ Sunspots, prominences and flares become rare, and then numerous, and then rare again, every 11 years.
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+ This is the surface of the Sun. The light that the Earth receives from the Sun is radiated from this layer. Below this layer, the Sun is opaque, or not transparent to light.
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+ Five layers make up the atmosphere of the Sun. The chromosphere, transition region, and corona are much hotter than the outer photosphere surface of the Sun.[16] It is believed that Alfvén waves may pass through to heat the corona.[17]
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+ The minimum temperature zone, the coolest layer of the Sun, is about 500 kilometres (310 miles) above the photosphere. It has a temperature of about 4,100 K (3,830 °C; 6,920 °F).[16] This part of the Sun is cool enough to allow simple molecules such as carbon monoxide and water to form. These molecules can be seen on the Sun with special instruments called spectroscopes.[18]
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+ The chromosphere is the first layer of the Sun which can be seen, especially during a solar eclipse when the moon is covering most of the Sun and blocking the brightest light.
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+ The solar transition region is the part of the Sun's atmosphere, between the chromosphere and outer part called the corona.[19] It can be seen from space using telescopes that can sense ultraviolet light. The transition is between two very different layers. In the bottom part it touches the photosphere and gravity shapes the features. At the top, the transition layer touches the corona.
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+ The corona is the outer atmosphere of the Sun and is much bigger than the rest of the Sun. The corona continuously expands into space forming the solar wind, which fills all the Solar System.[20] The average temperature of the corona and solar wind is about 1,000,000–2,000,000 K (1,800,000–3,600,000 °F). In the hottest regions it is 8,000,000–20,000,000 K (14,400,000–36,000,000 °F).[21] We do not understand why the corona is so hot.[20][21] It can be seen during a solar eclipse or with an instrument called a coronagraph.
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+ The heliosphere is the thin outer atmosphere of the Sun, filled with the solar wind plasma. It extends out past the orbit of Pluto to the heliopause, where it forms a boundary where it collides with the interstellar medium.[22]
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+ A solar eclipse appears when the moon is between the Earth and Sun. The last total solar eclipse occurred on Dec. 26, 2019, and was visible from Saudi Arabia, India, Sumatra and Borneo, with a partial eclipse visible in Australia and much of Asia.
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+ A lunar eclipse happens when the moon passes through the shadow of the Earth which can only occur during a full moon.The number of lunar eclipses in a single year can range from 0 to 3. Partial eclipses slightly outnumber total eclipses by 7 to 6.[23]
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+ Astrophysicists say our Sun is a G-type main-sequence star in the middle of its life. In a billion years or so, increased solar energy will boil away the Earth's atmosphere and oceans. In a few more billion years, they think the Sun will get bigger and become a red giant star. The Sun would be up to 250 times its current size, as big as 1.4 AU (210,000,000 kilometres; 130,000,000 miles) and will swallow up the Earth.
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+ Earth's fate is still a bit of a mystery. In the long term, the Earth's future depends on the Sun, and the Sun is going to be fairly stable for the next 5 billion years.[24][25] Calculations suggest that the Earth might move to a wider orbit. This is because about 30% of the Sun's mass will blow away in the solar wind. However, in the very long term the Earth will probably be destroyed as the Sun increases in size. Stars like the Sun become red giants at a later stage.[26] The Sun will expand beyond orbits of Mercury, Venus, and probably Earth. In any event, the ocean and air would have vanished before the Sun gets to that stage.
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+ After the Sun reaches a point where it can no longer get bigger, it will lose its layers and form a planetary nebula. Eventually, the Sun will shrink into a white dwarf. Then, over several hundred billion or even a trillion years, the Sun would fade into a black dwarf.
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+ Soil essentially is the loose material which forms the thin surface layer of Earth. Its formation is related to the parent Rock material ,relief ,climate and vegetation. It is a mixture of many different things including rock, minerals, water and air. Soil also has living things and dead things in it. We call the living and dead things "organic matter". Soil is important for life on Earth.
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+ Because soil holds water and nutrients, it is an ideal place for plants to grow.[1] Soil holds the roots, and lets plants stand above the ground to collect the light they need to live. This helps plants grow. Fungi and bacteria also live in the soil. They eat the dead plants and animals. The broken down material becomes food for plants (nutrients).[2]
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+ Many animals dig into the soil and make the soil their home. The large animals use soil to make dens for sleeping and giving birth. The small animals live most of their life in the soil. Earthworms are famous for improving soil. This is because the holes they make let air go into the soil. The holes also let water go through.
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+ The soil also has many microorganisms living in it. Many of them eat the organic material in the soil. They use oxygen and release carbon dioxide. They also release mineral nutrients into the soil.[3]
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+ Soil is different in different places on Earth. This is because the climate and rocks in the Earth are different in different places on Earth. Soils are usually thicker in places where ice sheets covered the ground during the Pleistocene ice ages. This is because the ice sheets ground the rock into powder as they slowly moved over the surface.
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+ Soil is made of four things.
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+ Components of a loam soil by percent volume
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+      Water (25%)     Gases (25%)     Sand (18%)     Silt (18%)     Clay (9%)     Organic matter (5%)
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+ Soil has rock pieces made small by wind and rain and sun and snow. The rocks are made of minerals and the minerals dissolve in water. Some of the minerals dissolved in water can be used as food by plants. Soil also has dead and living things (organic matter) in it. When a plant dies, the dead leaves are eaten by bacteria in the soil. When the bacteria are done eating, what is left behind is called humus. When the bacteria die they put the plant food (minerals) back into the soil. A food for plants is called a "plant nutrient". There are many kinds of plant nutrients. Soil has many empty spaces. Half of the soil is space. The spaces are filled with water and air. Water can enter the soil because there are spaces in the soil. Plants drink the water and the minerals in the water. Plant roots need air to live. If plant roots do not have air, the roots will die. If the plant roots die, the plant will die.[4] A plant that dies is eaten by bacteria and becomes plant nutrients again.
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+ There are many kinds of soil. Each kind of soil has big and small rocks in it and some humus. If rocks in a soil are as big as your fingers, we call those rocks "gravel". Smaller rocks are called sand. Very small rocks are called silt. Very, very small rocks are called clay. You can see sand with your eye. Sand feels rough between your toes. Silt rock is very small and you must use a lens to see silt. Silt rock is smooth between your toes. Clay rock is too small to see with a lens. To see the smallest things you must use a big microscope. You must use a big microscope to see clay too. Clay rock feels slippery between your toes. Most soils contain all kinds of small rocks. The three best rocks for making soil are sand, silt, and clay.
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+ Every soil has different amounts of sand and silt and clay. The mix of sand and silt and clay is the "texture" of the soil. We can also say the mix has a "soil texture". A soil with a lot of sand is called a "sandy soil texture". A soil with a lot of silt is called a "silt soil texture". A soil with a lot of clay is called a "clay soil texture". Farmers like to grow food in the best soil. The best soil is half sand and some silt and a little clay. The organic matter found in the soil is not counted in the soil texture. Only the rocks are counted when we discover the soil texture. Soil texture is very important.
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+ Clay and humus are special parts of the soil. They help keep water and plant food (plant nutrients) in the soil. Water and plant nutrients stick to clay and humus. Water sticks to all of the rock in the soil. But, water sticks best to clay. Water is taken into (absorbed) into humus like a sponge absorbs water. Humus holds a lot of water and plant nutrients. Clay and humus keep water and plant nutrients in the soil. Sand will hold only a little water in the soil. If the soil has too much sand, the water will flow down into the earth. The water that flows down takes plant nutrients down too. The plant roots can not get at the water and plant nutrients if they go too deep. It is best for soil to have a little bit of clay and humus in it for growing plants.
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+ The smallest parts of soil are sand and silt and clay. Those small parts join to make larger parts we call "clumps" or "aggregates". The clumps are made when sand and silt and clay stick together. The humus and clay and minerals in the soil are like glue. The glue sticks the sand and silt and clay together and makes clumps. The clumps make shapes by themselves. Some soils have small round clumps. Other soils have large, hard and flat clumps. The soil with small round clumps is best because it lets in air and water. A little glue is best. If the soil has only a little glue there will be space for water and air and the soil will be soft. If the soil has too much glue the soil will be hard. If the soil has no glue, there will be no space in the soil for air and water. A soil with no spaces is not healthy. Worms in the soil make a slippery glue. When worms make holes in the soil they leave some glue in the soil. Plant roots also make spaces in the soil. When the roots die they leave holes in the soil.
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+ A soil has a "soil texture" (sand and silt and clay) and it has organic matter mixed in it. But weather changes the soil. It is cold on the Earth near the north and south poles. It is hot near the equator of the Earth. Some places on Earth get a lot of rain and some places get no rain. Hot and wet weather make one kind of soil. Cold and dry weather make another kind of soil. Rain water makes small things in the soil move down with the water. When the things in the water get stuck in the soil those things make a layer in the soil. If you dig down into the soil you may find many layers in the soil. The layers may have different colors. The layers may have different "soil textures". The top part of the soil may have a lot of humus and sand. Below that layer there may be a layer of silt. Below that layer there may be a layer of clay.
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+ The sand stays on the top because it is large. The silt goes down a little with the water and makes a layer because it is small. The silt is smaller than some of the spaces in the soil. The clay can go down even lower with the water because it is the smallest. The sand will make one layer, the silt will make another layer and the clay will make another layer. The humus can move down with the water and make a layer too. The silt and clay and humus can move down because of the spaces in the soil. But, the silt, clay, and humus will fill the spaces in the soil. When the spaces in the soil are closed, it makes it hard for air to go into the soil. Plant roots do not go where there is no air. When we dig down we find layers in the soil.
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+ We call those layers "soil horizons". The top horizon may be an inch (25mm) thick. We call that layer the "O" horizon or sometimes "topsoil". The next layer (horizon) is the "B" horizon. The next lower layer of soil is the "C" horizon. The bottom layer has many rocks and may be called the bedrock or "R" horizon for "rock". Deep down, there is always bedrock. But you may have to dig down a mile (a km) or more. When the soil dries, the soil may shrink and cracks will form in the soil. The soil in the top layer may fall down into the cracks. This causes the layers of soil to be changed because they are mixed. There may be many types soil where you live or only one type of soil. Different rocks make different soil textures. Different weather makes the different soil textures different. And so, there are different soils all over the world.
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+ Ground is a commonly used word for the surface of the Earth. It is the dirt, soil and rock that we walk on. Ground in electrical language is the electrical charge of the earth. Voltages are compared to the ground to measure voltage.
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+ Solid is one of the three common states of matter. The molecules in solids are closely bound together, they can only vibrate. This means solids have a definite shape that only changes when a force is applied. This is different to liquids and gases which move randomly, a process called flow.
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+ When a solid becomes a liquid, this is called melting. Liquids become solid by freezing. Some solids, like dry ice, can turn into gas without turning liquid first. This is called sublimation.
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+ The forces between the atoms in a solid can take many forms. For example, a crystal of sodium chloride (common salt) is made up of ionic sodium and chlorine, which are held together by ionic bonds. In diamond or silicon, the atoms share electrons and make covalent bonds. In metals, electrons are shared in metallic bonding. Some solids, like most organic compounds, are held together with "van der Waals forces" coming from the polarization of the electronic charge cloud on each molecule. The dissimilarities between the types of solid come from the differences between their bonding.
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+ Most metals are strong, dense, and good conductors of electricity and heat. The mass of the elements in the periodic table, those to the left of a diagonal line drawn from boron to polonium, are metals. Mixtures of two or more elements in which the big component is a metal are known as alloys.
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+ People have been using metals for many purposes since prehistoric times.
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+ The strength and relialbility of metals has led to their widespread use in making of buildings and other things, as well as in most vehicles, many tools, pipes, road signs and railroad tracks. Iron and aluminium are the two most commonly used metals. They are also the most common metals in the Earth's crust. Iron is most commonly used in the form of an alloy, steel, which has up to 2.1% carbon, making it much harder than pure iron.
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+ Since metals are good conductors of electricity, they are valuable in electrical tools and for carrying an electric current over long distances with little energy loss. Because of this, electrical power grids rely on metal cables to get electricity. Home electrical systems, for example, are wired with copper for its good conducting uses. The high thermal conductivity of most metals also makes them useful for stovetop cooking utensils.
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+ Minerals are natural solids formed through many geological processes under high pressures. To be thought as a true mineral, a substance must have a crystal structure with uniform physical things throughout. Minerals differ in composition from pure elements and simple salts to very complex silicates with thousands of known forms. In contrast, a rock sample is a random aggregate of minerals and/or mineraloids, and has no specific chemical composition. Most of the rocks of the Earth's crust have quartz (crystalline SiO2), feldspar, mica, chlorite, kaolin, calcite, epidote, olivine, augite, hornblende, magnetite, hematite, limonite and a few other minerals. Some minerals, like quartz, mica or feldspar are common, while others have been found in only a few places in the world. The largest group of minerals by far is the silicates (most rocks are ≥95% silicates), which are made largely of silicon and oxygen, also with ions of aluminium, magnesium, iron, calcium and other metals.
ensimple/5446.html.txt ADDED
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+ Solid is one of the three common states of matter. The molecules in solids are closely bound together, they can only vibrate. This means solids have a definite shape that only changes when a force is applied. This is different to liquids and gases which move randomly, a process called flow.
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+
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+ When a solid becomes a liquid, this is called melting. Liquids become solid by freezing. Some solids, like dry ice, can turn into gas without turning liquid first. This is called sublimation.
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+
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+ The forces between the atoms in a solid can take many forms. For example, a crystal of sodium chloride (common salt) is made up of ionic sodium and chlorine, which are held together by ionic bonds. In diamond or silicon, the atoms share electrons and make covalent bonds. In metals, electrons are shared in metallic bonding. Some solids, like most organic compounds, are held together with "van der Waals forces" coming from the polarization of the electronic charge cloud on each molecule. The dissimilarities between the types of solid come from the differences between their bonding.
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+
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+ Most metals are strong, dense, and good conductors of electricity and heat. The mass of the elements in the periodic table, those to the left of a diagonal line drawn from boron to polonium, are metals. Mixtures of two or more elements in which the big component is a metal are known as alloys.
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+ People have been using metals for many purposes since prehistoric times.
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+ The strength and relialbility of metals has led to their widespread use in making of buildings and other things, as well as in most vehicles, many tools, pipes, road signs and railroad tracks. Iron and aluminium are the two most commonly used metals. They are also the most common metals in the Earth's crust. Iron is most commonly used in the form of an alloy, steel, which has up to 2.1% carbon, making it much harder than pure iron.
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+ Since metals are good conductors of electricity, they are valuable in electrical tools and for carrying an electric current over long distances with little energy loss. Because of this, electrical power grids rely on metal cables to get electricity. Home electrical systems, for example, are wired with copper for its good conducting uses. The high thermal conductivity of most metals also makes them useful for stovetop cooking utensils.
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+ Minerals are natural solids formed through many geological processes under high pressures. To be thought as a true mineral, a substance must have a crystal structure with uniform physical things throughout. Minerals differ in composition from pure elements and simple salts to very complex silicates with thousands of known forms. In contrast, a rock sample is a random aggregate of minerals and/or mineraloids, and has no specific chemical composition. Most of the rocks of the Earth's crust have quartz (crystalline SiO2), feldspar, mica, chlorite, kaolin, calcite, epidote, olivine, augite, hornblende, magnetite, hematite, limonite and a few other minerals. Some minerals, like quartz, mica or feldspar are common, while others have been found in only a few places in the world. The largest group of minerals by far is the silicates (most rocks are ≥95% silicates), which are made largely of silicon and oxygen, also with ions of aluminium, magnesium, iron, calcium and other metals.
ensimple/5447.html.txt ADDED
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+ Soil essentially is the loose material which forms the thin surface layer of Earth. Its formation is related to the parent Rock material ,relief ,climate and vegetation. It is a mixture of many different things including rock, minerals, water and air. Soil also has living things and dead things in it. We call the living and dead things "organic matter". Soil is important for life on Earth.
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+ Because soil holds water and nutrients, it is an ideal place for plants to grow.[1] Soil holds the roots, and lets plants stand above the ground to collect the light they need to live. This helps plants grow. Fungi and bacteria also live in the soil. They eat the dead plants and animals. The broken down material becomes food for plants (nutrients).[2]
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+ Many animals dig into the soil and make the soil their home. The large animals use soil to make dens for sleeping and giving birth. The small animals live most of their life in the soil. Earthworms are famous for improving soil. This is because the holes they make let air go into the soil. The holes also let water go through.
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+ The soil also has many microorganisms living in it. Many of them eat the organic material in the soil. They use oxygen and release carbon dioxide. They also release mineral nutrients into the soil.[3]
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+ Soil is different in different places on Earth. This is because the climate and rocks in the Earth are different in different places on Earth. Soils are usually thicker in places where ice sheets covered the ground during the Pleistocene ice ages. This is because the ice sheets ground the rock into powder as they slowly moved over the surface.
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+ Soil is made of four things.
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+
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+
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+
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+
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+
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+ Components of a loam soil by percent volume
18
+      Water (25%)     Gases (25%)     Sand (18%)     Silt (18%)     Clay (9%)     Organic matter (5%)
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+
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+ Soil has rock pieces made small by wind and rain and sun and snow. The rocks are made of minerals and the minerals dissolve in water. Some of the minerals dissolved in water can be used as food by plants. Soil also has dead and living things (organic matter) in it. When a plant dies, the dead leaves are eaten by bacteria in the soil. When the bacteria are done eating, what is left behind is called humus. When the bacteria die they put the plant food (minerals) back into the soil. A food for plants is called a "plant nutrient". There are many kinds of plant nutrients. Soil has many empty spaces. Half of the soil is space. The spaces are filled with water and air. Water can enter the soil because there are spaces in the soil. Plants drink the water and the minerals in the water. Plant roots need air to live. If plant roots do not have air, the roots will die. If the plant roots die, the plant will die.[4] A plant that dies is eaten by bacteria and becomes plant nutrients again.
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+
22
+ There are many kinds of soil. Each kind of soil has big and small rocks in it and some humus. If rocks in a soil are as big as your fingers, we call those rocks "gravel". Smaller rocks are called sand. Very small rocks are called silt. Very, very small rocks are called clay. You can see sand with your eye. Sand feels rough between your toes. Silt rock is very small and you must use a lens to see silt. Silt rock is smooth between your toes. Clay rock is too small to see with a lens. To see the smallest things you must use a big microscope. You must use a big microscope to see clay too. Clay rock feels slippery between your toes. Most soils contain all kinds of small rocks. The three best rocks for making soil are sand, silt, and clay.
23
+
24
+ Every soil has different amounts of sand and silt and clay. The mix of sand and silt and clay is the "texture" of the soil. We can also say the mix has a "soil texture". A soil with a lot of sand is called a "sandy soil texture". A soil with a lot of silt is called a "silt soil texture". A soil with a lot of clay is called a "clay soil texture". Farmers like to grow food in the best soil. The best soil is half sand and some silt and a little clay. The organic matter found in the soil is not counted in the soil texture. Only the rocks are counted when we discover the soil texture. Soil texture is very important.
25
+
26
+ Clay and humus are special parts of the soil. They help keep water and plant food (plant nutrients) in the soil. Water and plant nutrients stick to clay and humus. Water sticks to all of the rock in the soil. But, water sticks best to clay. Water is taken into (absorbed) into humus like a sponge absorbs water. Humus holds a lot of water and plant nutrients. Clay and humus keep water and plant nutrients in the soil. Sand will hold only a little water in the soil. If the soil has too much sand, the water will flow down into the earth. The water that flows down takes plant nutrients down too. The plant roots can not get at the water and plant nutrients if they go too deep. It is best for soil to have a little bit of clay and humus in it for growing plants.
27
+
28
+ The smallest parts of soil are sand and silt and clay. Those small parts join to make larger parts we call "clumps" or "aggregates". The clumps are made when sand and silt and clay stick together. The humus and clay and minerals in the soil are like glue. The glue sticks the sand and silt and clay together and makes clumps. The clumps make shapes by themselves. Some soils have small round clumps. Other soils have large, hard and flat clumps. The soil with small round clumps is best because it lets in air and water. A little glue is best. If the soil has only a little glue there will be space for water and air and the soil will be soft. If the soil has too much glue the soil will be hard. If the soil has no glue, there will be no space in the soil for air and water. A soil with no spaces is not healthy. Worms in the soil make a slippery glue. When worms make holes in the soil they leave some glue in the soil. Plant roots also make spaces in the soil. When the roots die they leave holes in the soil.
29
+
30
+ A soil has a "soil texture" (sand and silt and clay) and it has organic matter mixed in it. But weather changes the soil. It is cold on the Earth near the north and south poles. It is hot near the equator of the Earth. Some places on Earth get a lot of rain and some places get no rain. Hot and wet weather make one kind of soil. Cold and dry weather make another kind of soil. Rain water makes small things in the soil move down with the water. When the things in the water get stuck in the soil those things make a layer in the soil. If you dig down into the soil you may find many layers in the soil. The layers may have different colors. The layers may have different "soil textures". The top part of the soil may have a lot of humus and sand. Below that layer there may be a layer of silt. Below that layer there may be a layer of clay.
31
+
32
+ The sand stays on the top because it is large. The silt goes down a little with the water and makes a layer because it is small. The silt is smaller than some of the spaces in the soil. The clay can go down even lower with the water because it is the smallest. The sand will make one layer, the silt will make another layer and the clay will make another layer. The humus can move down with the water and make a layer too. The silt and clay and humus can move down because of the spaces in the soil. But, the silt, clay, and humus will fill the spaces in the soil. When the spaces in the soil are closed, it makes it hard for air to go into the soil. Plant roots do not go where there is no air. When we dig down we find layers in the soil.
33
+
34
+ We call those layers "soil horizons". The top horizon may be an inch (25mm) thick. We call that layer the "O" horizon or sometimes "topsoil". The next layer (horizon) is the "B" horizon. The next lower layer of soil is the "C" horizon. The bottom layer has many rocks and may be called the bedrock or "R" horizon for "rock". Deep down, there is always bedrock. But you may have to dig down a mile (a km) or more. When the soil dries, the soil may shrink and cracks will form in the soil. The soil in the top layer may fall down into the cracks. This causes the layers of soil to be changed because they are mixed. There may be many types soil where you live or only one type of soil. Different rocks make different soil textures. Different weather makes the different soil textures different. And so, there are different soils all over the world.
ensimple/5448.html.txt ADDED
@@ -0,0 +1,11 @@
 
 
 
 
 
 
 
 
 
 
 
 
1
+ A solstice is an astronomical event that happens twice each year when the Sun reaches its highest position in the sky as seen from the North or South Pole. The day of the solstice is either the "longest day of the year" or the "shortest day of the year" for any place on Earth, because the length of time between sunrise and sunset on that day is the yearly maximum or minimum for that place. The name is derived from the Latin words sol (“sun”) and sistere (“to stand still”). During the solstice, the Sun stands still; that is, the seasonal movement of the Sun's path comes to a stop before reversing direction. The “Northern Solstice” occurs in June, when the sun is at its highest point seen from the North Pole. The “Southern Solstice” occurs in December, when the sun is at its highest point seen from the South Pole.
2
+
3
+ The solstices, together with the equinoxes, are connected with the seasons. In some cultures they mark either the beginning or the middle of summer and winter.
4
+
5
+ The June Solstice happens when the Northern Hemisphere of the Earth is tilted toward the Sun and the Southern Hemisphere of the Earth is tilted away from the Sun. At the North Pole, the Sun reaches its highest point in the sky, and then begins moving lower. At the moment of the June solstice, the Sun is directly overhead some point on the Tropic of Cancer; this is the furthest north that the subsolar point ever reaches. In the Northern Hemisphere the June solstice is called the Summer Solstice (and marks the longest day of the year), while in the Southern Hemisphere it is called the Winter Solstice (and marks the shortest day of the year). The June Solstice is usually on June 21.
6
+
7
+ The December Solstice happens when the Southern Hemisphere of the Earth is tilted toward the Sun and the Northern Hemisphere of the Earth is tilted away from the Sun. At the South Pole, the Sun reaches its highest point in the sky, and then begins moving lower. At the moment of the December solstice, the Sun is directly overhead some point on the Tropic of Capricorn; this is the furthest south that the subsolar point ever reaches. In the Southern Hemisphere the December solstice is called the Summer Solstice (and marks the longest day of the year), while in the Northern Hemisphere it is called the Winter Solstice (and marks the shortest day of the year). The December Solstice is usually on December 21.
8
+
9
+ While the exact causes were long unknown, the effect (of days getting shorter or longer) was recognised in many ancient cultures. Many of the pre-Christian cultures, like the druidic, the Germanic and the Norse faith therefore celebrated these events as holidays.
10
+
11
+ When the importance of the old faiths vanished, the Christian religion took over some of the festivities, which were then carried out in the honour of a new (Christian) occasion. For instance, the date of Christmas in the Catholic and Protestant faith is just 3 days away from the December Solstice.
ensimple/5449.html.txt ADDED
@@ -0,0 +1,11 @@
 
 
 
 
 
 
 
 
 
 
 
 
1
+ A solstice is an astronomical event that happens twice each year when the Sun reaches its highest position in the sky as seen from the North or South Pole. The day of the solstice is either the "longest day of the year" or the "shortest day of the year" for any place on Earth, because the length of time between sunrise and sunset on that day is the yearly maximum or minimum for that place. The name is derived from the Latin words sol (“sun”) and sistere (“to stand still”). During the solstice, the Sun stands still; that is, the seasonal movement of the Sun's path comes to a stop before reversing direction. The “Northern Solstice” occurs in June, when the sun is at its highest point seen from the North Pole. The “Southern Solstice” occurs in December, when the sun is at its highest point seen from the South Pole.
2
+
3
+ The solstices, together with the equinoxes, are connected with the seasons. In some cultures they mark either the beginning or the middle of summer and winter.
4
+
5
+ The June Solstice happens when the Northern Hemisphere of the Earth is tilted toward the Sun and the Southern Hemisphere of the Earth is tilted away from the Sun. At the North Pole, the Sun reaches its highest point in the sky, and then begins moving lower. At the moment of the June solstice, the Sun is directly overhead some point on the Tropic of Cancer; this is the furthest north that the subsolar point ever reaches. In the Northern Hemisphere the June solstice is called the Summer Solstice (and marks the longest day of the year), while in the Southern Hemisphere it is called the Winter Solstice (and marks the shortest day of the year). The June Solstice is usually on June 21.
6
+
7
+ The December Solstice happens when the Southern Hemisphere of the Earth is tilted toward the Sun and the Northern Hemisphere of the Earth is tilted away from the Sun. At the South Pole, the Sun reaches its highest point in the sky, and then begins moving lower. At the moment of the December solstice, the Sun is directly overhead some point on the Tropic of Capricorn; this is the furthest south that the subsolar point ever reaches. In the Southern Hemisphere the December solstice is called the Summer Solstice (and marks the longest day of the year), while in the Northern Hemisphere it is called the Winter Solstice (and marks the shortest day of the year). The December Solstice is usually on December 21.
8
+
9
+ While the exact causes were long unknown, the effect (of days getting shorter or longer) was recognised in many ancient cultures. Many of the pre-Christian cultures, like the druidic, the Germanic and the Norse faith therefore celebrated these events as holidays.
10
+
11
+ When the importance of the old faiths vanished, the Christian religion took over some of the festivities, which were then carried out in the honour of a new (Christian) occasion. For instance, the date of Christmas in the Catholic and Protestant faith is just 3 days away from the December Solstice.
ensimple/545.html.txt ADDED
@@ -0,0 +1,6 @@
 
 
 
 
 
 
 
1
+ Former Bangalore (English pronunciation: ˈbæŋɡəlɔər, bæŋɡəˈlɔər), today again and officially known as Bengaluru (Kannada: ಬೆಂಗಳೂರು) is the capital city of the Indian state of Karnataka. It is famous for its Information technology industry and so it is called the Silicon Valley of India. Today as a large and growing city, Bangalore has many of the most well-recognized colleges and research institutions in India.
2
+
3
+ Bangalore is more famous for its climatic conditions. The temperature is usually low compared to the other cities in Karnataka.This city was also known as the garden city because of the greenery it had.
4
+
5
+
6
+
ensimple/5450.html.txt ADDED
@@ -0,0 +1,11 @@
 
 
 
 
 
 
 
 
 
 
 
 
1
+ A solstice is an astronomical event that happens twice each year when the Sun reaches its highest position in the sky as seen from the North or South Pole. The day of the solstice is either the "longest day of the year" or the "shortest day of the year" for any place on Earth, because the length of time between sunrise and sunset on that day is the yearly maximum or minimum for that place. The name is derived from the Latin words sol (“sun”) and sistere (“to stand still”). During the solstice, the Sun stands still; that is, the seasonal movement of the Sun's path comes to a stop before reversing direction. The “Northern Solstice” occurs in June, when the sun is at its highest point seen from the North Pole. The “Southern Solstice” occurs in December, when the sun is at its highest point seen from the South Pole.
2
+
3
+ The solstices, together with the equinoxes, are connected with the seasons. In some cultures they mark either the beginning or the middle of summer and winter.
4
+
5
+ The June Solstice happens when the Northern Hemisphere of the Earth is tilted toward the Sun and the Southern Hemisphere of the Earth is tilted away from the Sun. At the North Pole, the Sun reaches its highest point in the sky, and then begins moving lower. At the moment of the June solstice, the Sun is directly overhead some point on the Tropic of Cancer; this is the furthest north that the subsolar point ever reaches. In the Northern Hemisphere the June solstice is called the Summer Solstice (and marks the longest day of the year), while in the Southern Hemisphere it is called the Winter Solstice (and marks the shortest day of the year). The June Solstice is usually on June 21.
6
+
7
+ The December Solstice happens when the Southern Hemisphere of the Earth is tilted toward the Sun and the Northern Hemisphere of the Earth is tilted away from the Sun. At the South Pole, the Sun reaches its highest point in the sky, and then begins moving lower. At the moment of the December solstice, the Sun is directly overhead some point on the Tropic of Capricorn; this is the furthest south that the subsolar point ever reaches. In the Southern Hemisphere the December solstice is called the Summer Solstice (and marks the longest day of the year), while in the Northern Hemisphere it is called the Winter Solstice (and marks the shortest day of the year). The December Solstice is usually on December 21.
8
+
9
+ While the exact causes were long unknown, the effect (of days getting shorter or longer) was recognised in many ancient cultures. Many of the pre-Christian cultures, like the druidic, the Germanic and the Norse faith therefore celebrated these events as holidays.
10
+
11
+ When the importance of the old faiths vanished, the Christian religion took over some of the festivities, which were then carried out in the honour of a new (Christian) occasion. For instance, the date of Christmas in the Catholic and Protestant faith is just 3 days away from the December Solstice.
ensimple/5451.html.txt ADDED
@@ -0,0 +1,52 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Somalia (Somali: Soomaaliya; Arabic: الصومال‎), officially called the Federal Republic of Somalia (Somali: Jamhuuriyadda Soomaaliya; Arabic: جمهورية الصومال‎), is a country in Africa. It used to be known as the Somali Republic. It is shaped like the number seven. It is a country in the Horn of Africa. It is bordered by Djibouti to the northwest, Kenya to the southwest, the Gulf of Aden with Yemen to the north, the Guardafui Channel and Somali Sea to the east, and Ethiopia to the west. A person from Somalia is called a Somali.
2
+
3
+ Somalia is a republic governed by a federal administration with various regional administrations governing on a micro level.
4
+
5
+ Somalia is an independent country. Since the Somali Civil War in the 1980s, there has been no working government that covers all of Somalia; instead, different clans have been fighting for control. Somalia is now trying to gain control of their people and get back up on its feet with very little resources.
6
+
7
+ There are four big tribes in Somalia, the Hawiye, the Dirweyn, the Koofur Orsi inhabitants and the Darood.[4] Somalis are a nation of related families, which are called clans. Groups of clans sometimes band together based on a common ancestor or other blood relationship. Sometimes these family relationships date back hundreds or even thousands of years in the past.
8
+ Somalis are mostly camel or goat herders, and depend on their livestock to live. In Somalia there are limited sources of drinking water and grazing land, and disputes over grazing rights, water rights, or land in general can lead to fighting between families. Because of the clan system, the families involved will call on their clan for help, leading to a clan war.
9
+ The discovery of oil and minerals in Somalia, as well as the power and money associated with politics and business, has created more opportunities for families to get ahead, and has also created more reasons for families to have disputes.
10
+
11
+ Because Somalia does not have a working legal system, the only help a family in Somalia has to solve a dispute with another family is to get their clan involved. The only solution to the clan wars in Somalia is a working legal system, but the only group who has succeeded in creating one is the Islamic Courts Union. Unfortunately the Islamic Courts Union was accused of being terrorists and Ethiopia invaded Somalia to topple their government and put the government they created in power instead.[source?]
12
+
13
+ In ancient times, Somalia was a place where people from Egypt and Arabia went to buy Gum Arabic, Myrrh and Ebony Wood. The Ancient Egyptians used to call it Punt, which meant "God's Land". Somalis started herding camel and goats about 4,000 years ago, and they remain mostly herders today.
14
+
15
+ Visitors from as far away as China visited Somalia, such as Zheng He.
16
+
17
+ 400 more years later, the king of Ethiopia told his subjects that God hated Ifat, and he invaded Ifat with his army, destroying everything he came across and driving the king of Ifat to an island off the coast of Zeila, where he died. The king of Ethiopia then took part of Ifat and added it to his kingdom, and made Ifat pay him lots of money once a year. The remains of Ifat put their kingdom back together again and renamed it Adal.
18
+
19
+ About a hundred years later, the King of Adal was deposed by an influential warlord by the name of Ahmad ibn Ibrahim al-Ghazi, who had lots of influence with Somali clans across the north. He declared a Jihad against Ethiopia, brought together a huge army that included Turkish musketeers and Somali cavalry. The Somali cavalry were especially deadly because they could shoot arrows while riding their horses, something that the Mongol hordes and Japanese Samurai are also famous for.
20
+
21
+ Ahmad chose a bad time, however, because the Portuguese Empire was muscling into East Africa. They had taken over the whole east African coast up to Baraawe, and were trying to take over Mogadishu. The Portuguese decided to help out the Ethiopians because the Ethiopians were Christians and the Portuguese did not like Muslims. Ahmad had taken over more than half of Ethiopia when a troop of Portuguese musketeers showed up to help the Ethiopians out. One Portuguese musketeer managed to shoot Ahmad himself, killing him.
22
+
23
+ A lot of the Somali cavalry was only there because of Ahmad, so the Jihad ended and Ethiopia wound up invading Adal. The Turks had to send an army to stop them from taking over Zeila, and Adal ended up becoming part of the Turkish Ottoman Empire. On those days we do not find the exact people dwell in zeila, but the history ascribed the black people, without tracing their origin and their tribes.
24
+ However, some historians attributed Zeila inhabitant were called semaale without farther lucid explanation.
25
+
26
+ The Turks and Portuguese fought over East Africa for the next 200 years, but the Turks eventually won about 270 years ago. Northern Somalia stayed under Turkish protection after Ahmad died, and the east coast including Mogadishu ended up under the protection of the King of Oman. When Egypt declared independence from the Turks a hundred years later, Northern Somalia became part of Egypt. Egypt came under British protection shortly after that, and northern Somalia basically became a British protectorate as well. This became official about 130 years ago, and northern Somalia officially became British Somaliland.
27
+
28
+ The Kingdom of Italy had just come together as one country around this time, and wanted the same things that the other big countries had, like colonies. Italy offered to buy the rights to the east Africa coast from Oman, who was in charge of protecting the cities and small kingdoms there, and Oman agreed. Italy made deals with some of the larger kingdoms/sultanates (like the Sultanate of Nugaal) for them to be under Italian protection, but the smaller ones Italy just invaded. This became Italian Somalia in 1905, with capital Mogadishu.
29
+
30
+ Ethiopia, which had fallen apart again after Ahmad's Jihad, had recently put itself back together again as well, and started invading small Somali kingdoms as well, and by 1890 there were not many left. The French got in on this too, but they just took over a small area which today is Djibouti.
31
+
32
+ Lots of Somalis did not like what was going on, so a Muslim religious leader named Mohammed Abdullah Hassan started a group called the Darwiish to fight the British, Italians and Ethiopians. The British called him the "Mad Mullah" and spent about 30 years fighting him, eventually using fighter planes against his cavalry. At their height the Darwiish controlled almost a third of Somalia.
33
+
34
+ Italy created a colony around Mogadishu and enlarged the territory of Italian Somalia after WW1 with the areas south of the Juba river. In the next 20 years the Italian colony grew in importance, having at Hafun the biggest salt production in the world and in the Scebeli river a huge production of bananas exported to Europe. In 1928 was created the first airport in Somalia's capital and later in 1939 was started the longest air route in Africa with the Linea dell'impero, a flight between Rome and Mogadishu.
35
+
36
+ When Benito Mussolini took power in Italy, he ended the deals he made with the bigger Somali sultanates and invaded them conquering all the area that was to be the colony of Italian Somalia. Then he invaded and took over Ethiopia, using poison gas on the Ethiopians. Shortly afterwards, World War 2 broke out and he invaded British Somaliland, but two years later the British returned and liberated British Somaliland and Ethiopia as well as taking over Italian Somaliland.
37
+
38
+ After the war, Britain wanted to put all of the places Somalis lived in one country, which would be a British protectorate. The Ethiopians complained that they should be able to keep the areas they conquered, and the Italians also complained the same thing, so in the end the Ethiopians got to keep their bit, and the Italians did too. However, Italian Somaliland was put under a United Nations mandate, so the Italians could not make it a colony.
39
+
40
+ In 1960 both British and Italian Somaliland declared independence together as the Somali Republic. It was chosen the Latin alphabet for the Somali language. Many areas where Somalis lived were still part of Britain, Ethiopia and France. Somalia wanted to get back all the areas that had been colonized by the French, Ethiopians and British. Somalia and Ethiopia had a short war in 1964 over the Ethiopian part of Somalia, and it was obvious that more fighting was to come.
41
+
42
+ In 1969, the President of Somalia was killed by a man whose clan had been hurt by his policies, and General Mohammed Siad Barre took over the country. Siad Barre built a huge army with help from the Soviet Union and when Ethiopia fell for the fourth time (this time because of a Communist takeover) he invaded. The Soviet Union decided that Ethiopia was more important than Somalia and double-crossed Siad Barre, supplying huge amounts of weapons to Ethiopia. Other countries like Cuba and Israel also sent help to Ethiopia, so in the end Siad Barre lost the war.
43
+
44
+ Ethiopia's new government then began helping Somali rebel groups, who did not like how Siad Barre took over the country, and these rebel groups toppled Siad Barre' government in 1991 and forced him out of the country. After this, however, all of the rebel groups started fighting amongst themselves over who would be in charge now that Siad Barre was gone.
45
+
46
+ Eventually, some of the rebel groups decided to make their own governments in the land that they controlled. One, called Somaliland, declared independence from Somalia entirely, while another called Puntland declared independence "for now" until a new Somali national government can be put together. Dozens of attempts to create a new national government failed.
47
+
48
+ Because there was no government in most of Somalia (except where one had been built from scratch, like Puntland and Somaliland) Somalia's only legal system, beyond the law of the gun, was traditional custom and Islamic Sharia law. Because of this, Sharia legal scholars in the lawless south of Somalia gained quite a bit of influence. Around the same time, the people fighting for Somali lands in Ethiopia to be part of Somalia turned to the example of the Afgani Mujahideen, and created their own group called al-Ittihad al-Islamiyya or the Islamic Union. During the 1990s Ethiopia invaded Somalia several times to attack the Islamic Union, who were helping Somali rebels in Ethiopia.
49
+
50
+ After 2001, the United States of America became very suspicious of both the Sharia courts and the Islamic Union of being terrorists. Warlords made a group called the Alliance for the Restoration of Peace and Counter-Terrorism. The Sharia courts banded together to protect themselves and created the Islamic Courts Union. People liked the Sharia courts and hated the gangsters, so everyone helped the Islamic Courts Union, who defeated the gangsters and drove them out of Mogadishu in 2006. The Islamic Courts Union then formed an army and took over most of southern Somalia.
51
+
52
+ The United States of America and Ethiopia was alarmed by this takeover, so Ethiopia invaded southern Somalia in 2007 and put a new government in power that was made up of the rebel groups that Ethiopia had funded 15 years earlier. Almost everyone disagreed with this decision, and that same year a rebellion against this new government broke out in Mogadishu and spread across the whole country by 2008. At around the same time, Somali pirates kidnapped westerners from big ships for ransom.
ensimple/5452.html.txt ADDED
@@ -0,0 +1,19 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+
2
+
3
+ Shrews are small mammals which look rather like mice. They were classified in the old Insectivora, but that is no longer used. Now they are classified in the family Soricidae, suborder Soricomorpha.[1]
4
+
5
+ True shrews are not to be confused with West Indies shrews, treeshrews, otter shrews, or elephant shrews, which belong to different families or orders.
6
+
7
+ Although its external appearance is generally that of a long-nosed mouse, a shrew is not a rodent, as mice are. In fact it is related to moles. Shrews have sharp, spike-like teeth, not the familiar gnawing front incisor teeth of rodents.
8
+
9
+ Shrews are distributed almost worldwide. Of the major tropical and temperate land masses, only New Guinea, Australia, and New Zealand do not have any native shrews. In South America, shrews are relatively recent immigrants and are present only in the northern Andes. In terms of species diversity, the shrew family is the fourth most successful mammal family.
10
+
11
+ With the discvery that the old Insectivora was not a natural (monophyletic) group,[2] new terms were invented to classify its former groups.[3] That explains the little-known terms in the taxobox.
12
+
13
+ All shrews are small, most no larger than a mouse. The largest is the Asian house shrew (Suncus murinus), which is about 15 cm long and weighs around 100 grams.[4] Several are very small: the Etruscan shrew (Suncus etruscus), is about 3.5 cm and 2 grams. It is the smallest living terrestrial mammal.
14
+
15
+ In general, shrews live in and on the ground. They search for seeds, insects, nuts, and worms. Some climb trees, some live underground, some live under snow, and some hunt in water. They have small eyes, and generally poor vision, but have excellent senses of hearing and smell.[5] They are very active animals, with big appetites. Shrews have an unusually high metabolic rate.[6] Shrews usually eat 80–90% of their own body weight in food daily.
16
+
17
+ They do not hibernate, but can enter torpor. Shrews can lose between 30% and 50% of their body weight in winter, shrinking the size of bones, skull and internal organs.[7]
18
+
19
+ Unlike rodents, which have gnawing incisors that grow throughout life, the teeth of shrews wear down throughout life, and they lose their milk teeth before birth. Therefore, they have only one set of teeth for their lifetime. Apart from the first pair of incisors, which are long and sharp, and the chewing molars at the back of the mouth, the teeth of shrews are small and peg-like, and may be reduced in number. The dental formula of shrews is:upper=3.1.1-3.3; lower=1-2.0-1.1.3.
ensimple/5453.html.txt ADDED
@@ -0,0 +1,19 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+
2
+
3
+ Shrews are small mammals which look rather like mice. They were classified in the old Insectivora, but that is no longer used. Now they are classified in the family Soricidae, suborder Soricomorpha.[1]
4
+
5
+ True shrews are not to be confused with West Indies shrews, treeshrews, otter shrews, or elephant shrews, which belong to different families or orders.
6
+
7
+ Although its external appearance is generally that of a long-nosed mouse, a shrew is not a rodent, as mice are. In fact it is related to moles. Shrews have sharp, spike-like teeth, not the familiar gnawing front incisor teeth of rodents.
8
+
9
+ Shrews are distributed almost worldwide. Of the major tropical and temperate land masses, only New Guinea, Australia, and New Zealand do not have any native shrews. In South America, shrews are relatively recent immigrants and are present only in the northern Andes. In terms of species diversity, the shrew family is the fourth most successful mammal family.
10
+
11
+ With the discvery that the old Insectivora was not a natural (monophyletic) group,[2] new terms were invented to classify its former groups.[3] That explains the little-known terms in the taxobox.
12
+
13
+ All shrews are small, most no larger than a mouse. The largest is the Asian house shrew (Suncus murinus), which is about 15 cm long and weighs around 100 grams.[4] Several are very small: the Etruscan shrew (Suncus etruscus), is about 3.5 cm and 2 grams. It is the smallest living terrestrial mammal.
14
+
15
+ In general, shrews live in and on the ground. They search for seeds, insects, nuts, and worms. Some climb trees, some live underground, some live under snow, and some hunt in water. They have small eyes, and generally poor vision, but have excellent senses of hearing and smell.[5] They are very active animals, with big appetites. Shrews have an unusually high metabolic rate.[6] Shrews usually eat 80–90% of their own body weight in food daily.
16
+
17
+ They do not hibernate, but can enter torpor. Shrews can lose between 30% and 50% of their body weight in winter, shrinking the size of bones, skull and internal organs.[7]
18
+
19
+ Unlike rodents, which have gnawing incisors that grow throughout life, the teeth of shrews wear down throughout life, and they lose their milk teeth before birth. Therefore, they have only one set of teeth for their lifetime. Apart from the first pair of incisors, which are long and sharp, and the chewing molars at the back of the mouth, the teeth of shrews are small and peg-like, and may be reduced in number. The dental formula of shrews is:upper=3.1.1-3.3; lower=1-2.0-1.1.3.
ensimple/5454.html.txt ADDED
@@ -0,0 +1,19 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Sudan is a country in Africa. The official name of Sudan is The Republic of the Sudan. Its capital and largest city is Khartoum.
2
+
3
+ Sudan borders by Egypt to the north, the Red Sea to the northeast, Eritrea and Ethiopia to the east, South Sudan to the south, the Central African Republic to the southwest, Chad to the west, and Libya to the northwest. Sudan has a sea to the northeast called the Red Sea.
4
+
5
+ Sudan used to have the largest area of all the countries in Africa. However, on July 9, 2011, the southern part of the country left and became a new country, South Sudan. Sudan now has an area of 1,861,484 square kilometres (718,723 square miles).[7] It is the third largest country in Africa by area. The Nile flows through Sudan, providing water to crops. There are many different tribal and ethnic groups, though the country is mainly divided between the north, which has more Arabic people, and the south, which has more people of African descent.
6
+
7
+ People from Sudan are called Sudanese. About 45 million people live in Sudan. About 4 million of these live in Khartoum or in towns that are joined to it.
8
+
9
+ Arabic is the official language of Sudan, but people also speak Nubian, Nilotic and English. Many other languages are spoken in different parts of the country as well.
10
+
11
+ Most Sudanese people have Islam as their religion. A small number are Christian. Some people have other religions that are called tribal (local) beliefs.
12
+
13
+ The currency of Sudan is called the Sudanese Pound (Jinneh).
14
+
15
+ The current leader of Sudan is Acting President Ahmed Awad Ibn Auf.
16
+
17
+ For several years, the Darfur conflict has been going on in Sudan. Over 400,000 people have died in it.
18
+
19
+ Media related to Sudan at Wikimedia Commons
ensimple/5455.html.txt ADDED
@@ -0,0 +1,19 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Pain is a symptom of being hurt or sick. It is a bad sensation that is physical and emotional.
2
+
3
+ Most pain starts when part of the body is hurt. Nerves in that part send messages to the brain. Those messages tell the brain that the body is being damaged. Pain is not just the message the nerve sends to the brain. It is the bad emotion felt because of that damage.
4
+
5
+ The message that the nerve sends to the brain is called nociception. What is experienced because of the nociception is pain.
6
+
7
+ Pain can be acute or chronic. Acute means it only happens a short time. Chronic means the pain lasts a long time.
8
+
9
+ Pain can be from different types of injury:
10
+
11
+ Pain can also happen when there is no underlying injury or cause. Pain can happen just because the nerves do not work right. This is called neuropathic pain.
12
+
13
+ For most pain, the best treatment is to stop the damage that makes the pain. If the ankle is sprained, doctors tell the person not to walk on it. They tell them to put ice on it. This helps the injury stop. For an ulcer in the stomach, doctors stop the acid made in the stomach. This helps the ulcer to heal.
14
+
15
+ But many kinds of pain also need medicines to feel better. There are many different kinds of medicines for pain:
16
+
17
+ There are doctors who specialize in pain management. These are usually anesthesiologists but may also have any one of a number of underlying areas of specialization, such as neurology, physiatry, or internal medicine.
18
+
19
+ A new genetic method of treating chronic pain is in the research stage. The idea is to inactivate (turn off) gene HCN2, which plays a key role in chronic pain. Experiments on mice suggest this will work.[1]
ensimple/5456.html.txt ADDED
@@ -0,0 +1,23 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Sulfur (or sulphur) is a chemical element. The symbol for sulfur is S, and its atomic number is 16.
2
+
3
+ Sulfur is a yellow solid that is a nonmetal. It is brittle (easily broken) and crystalline. It burns easily, releasing toxic fumes of sulfur dioxide. It has a very faint odor. If it is melted and cooled very quickly, it makes a rubbery form of sulfur that is called "plastic sulfur". It gradually turns back into the yellow brittle form. It does not dissolve in water. The smell normally known as "sulfur" comes from hydrogen sulfide and similar chemicals. These sulfides are produced when things decay without air.
4
+
5
+ Sulfur compounds are chemical compounds containing sulfur ions. Sulfur comes in several forms: oxidation states of -2 (hydrogen sulfide), +4 (sulfur dioxide, sulfites) and +6 (sulfuric acid, sulfates) are most common, although there are other oxidation states.
6
+
7
+ Mixture of sulfur oxides and water
8
+
9
+ Salts of hydrogen sulfide
10
+
11
+ Salts of sulfurous acid
12
+
13
+ Salts of sulfuric acid
14
+
15
+ Sulfur can be found in the earth near volcanoes. Many minerals contain sulfur ions. Coal contains sulfur ions which are released when it burns. Hydrogen sulfide and sulfur dioxide are some sulfur compounds that are released when coal burns. They are reacted to make sulfur. Sulfur in the ground in melted, then forced up through pipes by compressed (squeezed) air.
16
+
17
+ Sulfur is commonly used in gunpowder, medicine, and matches. Matches release sulfur dioxide when they burn, giving them their smell. Sulfur is an essential component to living cells. Many proteins contain sulfur. It is also used as a pesticide on organic farms.
18
+
19
+ Powder sulfur is said to be left after an occurrence of a supernatural being.
20
+
21
+ Sulfur is not toxic, but the chemical compounds formed when sulfur burns can be very toxic. Sulfuric acid, for example, can make paper turn black!
22
+
23
+ The ancient name for sulfur is brimstone. Sulfur was used in fumigation (making fumes) and medicine in ancient Greece. In 1777, Antoine Lavosier convinced the scientific community that sulfur was an element.
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@@ -0,0 +1 @@
 
 
1
+ Wikipedia does not yet have an article with this name.
ensimple/5458.html.txt ADDED
@@ -0,0 +1,4 @@
 
 
 
 
 
1
+ A soup is a kind of food. People make soups by boiling things in water. Then they put the things they boiled into a bowl and eat them. Vegetables are in most soups. You can also put meat in soups. Soups that are thicker than normal, with more meat or vegetables, are stews. The liquid in soup is broth.
2
+
3
+ Traditionally, soups are classified into two main groups: clear soups and thick soups. The traditional French types of clear soups are bouillon and consommé. Thick soups are classified by the type of thickening agent used. Purées are vegetable soups thickened with starch. Bisques are made from puréed shellfish or vegetables thickened with cream. Cream soups may be thickened with béchamel sauce; and veloutés are thickened with eggs, butter, and cream. Other ingredients commonly used to thicken soups and broths include egg, rice, lentils, flour, and grains. Many popular soups also include carrots and potatoes.
4
+
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@@ -0,0 +1,27 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Renewable energy comes from renewable resources.[1] It is different from fossil fuels as it does not produce as many greenhouse gases and other pollutants as fossil fuel combustion.
2
+
3
+ People have used traditional wind power, hydropower, biofuel, and solar energy for many centuries, all around the world. The mass production of electricity using renewable energy sources is now becoming more common.
4
+
5
+ From the end of 2004, worldwide renewable energy capacity grew at rates of 10–60% annually for many technologies. For wind power and many other renewable technologies, growth sped up in 2009 relative to the previous four years. More wind power was added during 2009 than any other renewable technology. However, grid-connected PV increased the fastest of all renewables technologies, with a 60% annual average growth rate.
6
+
7
+ Projections vary, but scientists have advanced a plan to power 100% of the world's energy with wind, hydroelectric, and solar power by the year 2030.[5]
8
+
9
+ Wind power capacity has expanded quickly to 336 GW in June 2014, and wind energy production was about 4% of total worldwide electricity usage, and growing fast.[6] Wind power is widely used in European countries, and more recently in the United States and Asia.[7][8] Wind power accounts for approximately 19% of electricity generation in Denmark, 11% in Spain and Portugal, and 9% in the Republic of Ireland.[9] These are some of the largest wind farms in the world, as of January 2010:
10
+
11
+ A wind farm is a group of wind turbines in the same location used for production of electricity. A large wind farm may consist of several hundred individual wind turbines distributed over an extended area, but the land between the turbines may be used for agricultural or other purposes. A wind farm may also be located offshore.
12
+
13
+ Solar photovoltaic cells convert sunlight into electricity and many solar photovoltaic power stations have been built, mainly in Europe.[22] As of December 2010, the largest photovoltaic (PV) power plants in the world are the Sarnia Photovoltaic Power Plant (Canada, 97 MW), Montalto di Castro Photovoltaic Power Station (Italy, 84.2 MW), Finsterwalde Solar Park (Germany, 80.7 MW), Rovigo Photovoltaic Power Plant (Italy, 70 MW), Olmedilla Photovoltaic Park (Spain, 60 MW), the Strasskirchen Solar Park (Germany, 54 MW), and the Lieberose Photovoltaic Park (Germany, 53 MW).[22] Larger power stations are under construction, some proposed will have a capacity of 150 MW or more.[23]
14
+
15
+ Many of these plants are integrated with agriculture and some use innovative tracking systems that follow the sun's daily path across the sky to generate more electricity than conventional fixed-mounted systems. There are no fuel costs or emissions during operation of the power stations.
16
+
17
+ Large solar thermal power stations include the 354 megawatt (MW) Solar Energy Generating Systems power installation in the USA, Solnova Solar Power Station (Spain, 150 MW), Andasol solar power station (Spain, 100 MW), Nevada Solar One (USA, 64 MW), PS20 solar power tower (Spain, 20 MW), and the PS10 solar power tower (Spain, 11 MW). The 370 MW Ivanpah Solar Power Facility, located in California's Mojave Desert, is the world’s largest solar thermal power plant project currently under construction.[25]
18
+
19
+ The solar thermal power industry is growing fast with 1.2 GW under construction as of April 2009 and another 13.9 GW announced globally through 2014. Spain is the epicenter of solar thermal power development with 22 projects for 1,037 MW under construction, all of which are projected to come online by the end of 2010.[26] In the United States, 5,600 MW of solar thermal power projects have been announced.[27] In developing countries, three World Bank projects for integrated solar thermal/combined-cycle gas-turbine power plants in Egypt, Mexico, and Morocco have been approved.[28]
20
+
21
+ Variable renewable energy is a renewable energy source that is non-dispatchable due to its fluctuating nature, like wind power and solar power, as opposed to a controllable renewable energy source such as hydroelectricity, or biomass, or a relatively constant source such as geothermal power or run-of-the-river hydroelectricity. Critics of wind and solar power warn of their variable output, but many studies have shown that the grid can cope, and it is doing so in Denmark and Spain.[29]
22
+
23
+ The International Energy Agency says that there has been too much focus on issue of the variability.[30] Its significance depends on a range of factors which include the market penetration of the renewables concerned, the balance of plant, and the wider connectivity of the system, as well as demand side flexibility. Variability will rarely be a barrier to increased renewable energy deployment. But at high levels of market penetration it requires careful analysis and management.[30]
24
+
25
+ Brazil has one of the largest renewable energy programs in the world, involving production of ethanol fuel from sugar cane, and ethanol now provides 18 percent of the country's automotive fuel. As a result, Brazil, which years ago had to import a large share of the petroleum needed for domestic consumption, recently reached complete self-sufficiency in oil.[31]
26
+
27
+ Most cars on the road today in the U.S. can run on blends of up to 10% ethanol, and motor vehicle manufacturers already produce vehicles designed to run on much higher ethanol blends. Ford, DaimlerChrysler, and General Motors Corporation are among the automobile companies that sell “flexible-fuel” cars, trucks, and minivans that can use gasoline and ethanol blends ranging from pure gasoline up to 85% ethanol (E85). By mid-2006, there were approximately six million E85-compatible vehicles on U.S. roads.[32]
ensimple/546.html.txt ADDED
@@ -0,0 +1,10 @@
 
 
 
 
 
 
 
 
 
 
 
1
+ Bangkok (Thai: กรุงเทพมหานคร) is the most populated capital city of Thailand. In 2010, the city had a population of 9,100,000 people. Since Bangkok has more than 55 times as many people as the second largest city, Nonthaburi, it is a primate city.[1]
2
+
3
+ In Thailand Bangkok is known as Krung Thep or, its full name; Krung Thep Mahanakhon Amon Rattanakosin Mahinthara Yuthaya Mahadilok Phop Noppharat Ratchathani Burirom Udomratchaniwet Mahasathan Amon Piman Awatan Sathit Sakkathattiya Witsanukam Prasit. Nicknames for Bangkok are the City of Angels and the Big Mango.
4
+
5
+ Bangkok has a tropical savanna climate (Aw in the Koeppen climate classification).
6
+
7
+ The main airport is Suvarnabhumi, located 30 kilometers east of Bangkok.
8
+
9
+
10
+
ensimple/5460.html.txt ADDED
@@ -0,0 +1,11 @@
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Deafness is when someone cannot hear at all, or cannot hear well. Deafness is also known as 'hearing loss'. There were many famous people who were deaf, such as Ludwig van Beethoven and Helen Keller.
2
+
3
+ A person is considered to be deaf if they cannot hear the same range of sounds as a person with normal hearing ability. People that cannot hear any sounds are also deaf. People who are partially deaf may hear some sounds and may hear words.
4
+
5
+ People who cannot hear and understand words well are 'hard of hearing'.
6
+
7
+ There are different causes of deafness:
8
+
9
+ Generally, there are two views of deafness:
10
+
11
+ These categories may overlap.
ensimple/5461.html.txt ADDED
@@ -0,0 +1,19 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+
2
+
3
+ A mouse (plural mice) is a rodent, which is a kind of mammal.
4
+ It has a pointed snout, small rounded ears, a body-length scaly tail and a high breeding rate. The best known mouse species is the common house mouse (Mus musculus). Usually, house mice are brownish-gray. It is also a popular pet. In some places, certain kinds of field mice are also common. They are known to invade homes for food and occasionally shelter.
5
+
6
+ These small animals are often used in science experiments, or sometimes kept as pets.[1] Some mice carry diseases. This causes some people to think of mice as vermin or pests.[2][3] Many other people think mice are cute and fun animals.
7
+ Mice are rodents, therefore they are related to squirrels, rats, and beavers. Mice eat weeds, seeds, berries, and more. They are eaten by owls, foxes, and cats, amongst others.
8
+
9
+ The word "mouse" should only be used for small murines, but does get used for other distantly-related small rodents. The murines are the largest subfamily of mammals. In fact, it is larger than almost all mammal orders.
10
+
11
+ The common house mouse is thought of as a pest. They are found in the homes of humans.
12
+
13
+ Voles are not mice, they are in a different family of rodents.
14
+
15
+ These are not mice either, or only distantly related. These mice live in forests. They can run and jump better than mice, and they get their common name from this.
16
+
17
+ The aggressive grasshopper mouse rarely eats other mice, but it does like grasshoppers and insects. It is also only a distant relative.
18
+
19
+ Anthropomorphism makes cartoon mice look and act more like people than like real mice. For example, the Disney characters Mickey and Minnie Mouse walk, talk, and act like people. Jerry, the mouse star of Tom and Jerry cartoons, is similarly humanized.
ensimple/5462.html.txt ADDED
@@ -0,0 +1,20 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ A computer mouse is an input device that is used with a computer. Moving a mouse along a flat surface can move the cursor to different items on the screen. Items can be moved or selected by pressing the mouse buttons (called clicking).[1] Today's mice have two buttons, the left button and right button, with a scroll wheel in between the two. Today, many computer mice use wireless technology and have no wire.
2
+
3
+ There are many types of mouse. Optical mouse, wireless mouse, mechanical mouse, trackball mouse. A computer mouse is a handheld hardware input device that controls a cursor in a GUI and can move and select text, icons, files, and folders. For desktop computers, the mouse is placed on a flat surface such as a mouse pad or a desk and is placed in front of your computer. The picture to the right is an example of a desktop computer mouse with two buttons and a wheel. The mouse was originally known as the X-Y position Indicator for a display system and was invented by Douglas Engelbart in 1963 while working at Xerox PARC. However, due to Alto's lack of success, the first widely used application of the mouse was with the Apple Lisa computer.
4
+
5
+ Today this device is on virtually every computer. The primary function is to move the mouse pointer on the screen. The mouse pointer can be used for many actions on the computer. Clicking or double clicking an icon, folder, or other object will open a document or execute the program. Users can also move an icon, folder, or other object by clicking a mouse button and dragging the object with the mouse pointer. Pointing to an item on the screen means moving your mouse so the pointer appears to be touching the item. When you point to something, a small box often appears that describes the item.
6
+
7
+ In 1964 Douglas Engelbart (1925-2013), a researcher at Stanford Research Institute, wanted to find a way to make using computers easier. In those days, computers were large and expensive. Using them was very hard because everything had to be typed in on a keyboard. This command line interface is still used by some people, such as programmers, to get things done faster.
8
+
9
+ After studying and designing for a long time, Engelbart succeeded in inventing an input device which he named 'XY index'. At first, it needed two hands to use, but it was changed so that only one hand was needed to use it. This model was more like the mouse that we use today, but was made up of a big ball that the user had to roll in different directions to move the cursor.
10
+
11
+ The computer mouse began to be widely used when Xerox Palo Alto Research introduced a GUI in 1981, where the mouse was used to click things on the screen. This was also the case with the Macintosh operating system from Apple[2] of Apple Inc when it came out in 1984, as well as Microsoft Windows. Windows became popular over the years, so over time computer mice became used with many computers.
12
+
13
+ In 1991, the company Logitech invented the wireless mouse.[3][4] Unlike a normal mouse, wireless mice were connected by radio signals.[3][4] Newer wireless mice use Bluetooth or WiFi to connect wireless mice to computers.[5]
14
+
15
+ On most computers, the user can move the mouse to move the cursor in the same direction.[6] To choose something that is on the screen, the user can move the cursor to it and "click" the left mouse button. The right button is used to open menus that are different depending on where the cursor is. The other mouse buttons can do different things, depending on the software. Most mice have two buttons to click.
16
+
17
+ Most mice also have the "scroll wheel"—a small wheel found between the two main mouse buttons. The user can move the wheel back and forth to "scroll" through things like a website or folder. "Scrolling" means moving the words or pictures up or down on the screen, so another part of the page comes into view. The wheel can also be pressed, to click it like another button.
18
+
19
+ A mouse can also be connected to and used the same way with a laptop computer, but unlike a desktop computer, one does not have to be connected to use the laptop. This is because along with the keyboard, laptops have a built-in input device called a trackpad which does the same thing as a mouse. Similarly, tablet computers have a touchscreen as an input device, but some, like the Microsoft Surface and those that use Android, also work with mice.
20
+
ensimple/5463.html.txt ADDED
@@ -0,0 +1,20 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ A computer mouse is an input device that is used with a computer. Moving a mouse along a flat surface can move the cursor to different items on the screen. Items can be moved or selected by pressing the mouse buttons (called clicking).[1] Today's mice have two buttons, the left button and right button, with a scroll wheel in between the two. Today, many computer mice use wireless technology and have no wire.
2
+
3
+ There are many types of mouse. Optical mouse, wireless mouse, mechanical mouse, trackball mouse. A computer mouse is a handheld hardware input device that controls a cursor in a GUI and can move and select text, icons, files, and folders. For desktop computers, the mouse is placed on a flat surface such as a mouse pad or a desk and is placed in front of your computer. The picture to the right is an example of a desktop computer mouse with two buttons and a wheel. The mouse was originally known as the X-Y position Indicator for a display system and was invented by Douglas Engelbart in 1963 while working at Xerox PARC. However, due to Alto's lack of success, the first widely used application of the mouse was with the Apple Lisa computer.
4
+
5
+ Today this device is on virtually every computer. The primary function is to move the mouse pointer on the screen. The mouse pointer can be used for many actions on the computer. Clicking or double clicking an icon, folder, or other object will open a document or execute the program. Users can also move an icon, folder, or other object by clicking a mouse button and dragging the object with the mouse pointer. Pointing to an item on the screen means moving your mouse so the pointer appears to be touching the item. When you point to something, a small box often appears that describes the item.
6
+
7
+ In 1964 Douglas Engelbart (1925-2013), a researcher at Stanford Research Institute, wanted to find a way to make using computers easier. In those days, computers were large and expensive. Using them was very hard because everything had to be typed in on a keyboard. This command line interface is still used by some people, such as programmers, to get things done faster.
8
+
9
+ After studying and designing for a long time, Engelbart succeeded in inventing an input device which he named 'XY index'. At first, it needed two hands to use, but it was changed so that only one hand was needed to use it. This model was more like the mouse that we use today, but was made up of a big ball that the user had to roll in different directions to move the cursor.
10
+
11
+ The computer mouse began to be widely used when Xerox Palo Alto Research introduced a GUI in 1981, where the mouse was used to click things on the screen. This was also the case with the Macintosh operating system from Apple[2] of Apple Inc when it came out in 1984, as well as Microsoft Windows. Windows became popular over the years, so over time computer mice became used with many computers.
12
+
13
+ In 1991, the company Logitech invented the wireless mouse.[3][4] Unlike a normal mouse, wireless mice were connected by radio signals.[3][4] Newer wireless mice use Bluetooth or WiFi to connect wireless mice to computers.[5]
14
+
15
+ On most computers, the user can move the mouse to move the cursor in the same direction.[6] To choose something that is on the screen, the user can move the cursor to it and "click" the left mouse button. The right button is used to open menus that are different depending on where the cursor is. The other mouse buttons can do different things, depending on the software. Most mice have two buttons to click.
16
+
17
+ Most mice also have the "scroll wheel"—a small wheel found between the two main mouse buttons. The user can move the wheel back and forth to "scroll" through things like a website or folder. "Scrolling" means moving the words or pictures up or down on the screen, so another part of the page comes into view. The wheel can also be pressed, to click it like another button.
18
+
19
+ A mouse can also be connected to and used the same way with a laptop computer, but unlike a desktop computer, one does not have to be connected to use the laptop. This is because along with the keyboard, laptops have a built-in input device called a trackpad which does the same thing as a mouse. Similarly, tablet computers have a touchscreen as an input device, but some, like the Microsoft Surface and those that use Android, also work with mice.
20
+
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1
+ In biology, a family is a taxonomic rank, or a taxon at that rank. Each family contains one or more genera. The next important rank is that of order. Usually, the name of the family ends with a "idae" for animals, and "aceae" for plants. Sometimes there are also subfamilies and superfamilies. Subfamilies end with "inae" or "oideae".
2
+
3
+ In Latin, family is "familia". For example, walnuts (genus Juglans) and hickories (genus Carya) both belong to the walnut family (the Juglandaceae).
ensimple/5465.html.txt ADDED
@@ -0,0 +1,11 @@
 
 
 
 
 
 
 
 
 
 
 
 
1
+ A submarine (or Sub) is a vessel that goes underwater. Most large submarines are war vessels. Some small ones are used for scientific or business purposes. These are often called "submersibles" and cannot go far or stay long away from base. Some people buy their own to explore under the sea. A submarine is actually a boat, not a ship.
2
+
3
+ Early submarines were often powered by hand. This is because boat engines had not been invented yet. They were almost always made for war. Submarines would try to sink enemy ships by crude methods. These included drilling screws into their wooden hulls. Some tried to blow up a ship. This often destroyed the submarine, too. At the end of the 19th century the Whitehead torpedo and electrical systems allowed much better submarines.
4
+
5
+ These better submarines were much used during the First and Second World Wars. Many of these better submarines were created by Germany, called U-boats. The submarines were powered by a diesel-electric system. A diesel motor would be used to turn a generator. The generator would charge a large battery while the submarine was on the surface. The power in the battery was then used by the submarine when it went underwater. These submarines were dangerous to enemies. They were hard to see while underwater but it was easy to attack them when they surfaced to recharge. Many modern boats still use this diesel-electric propulsion system.
6
+
7
+ The First Battle of the Atlantic was the first major battle that was mainly fought between submarines and their enemies. As in later wars, the main jobs of submarines were to enforce a blockade and to sink enemy warships. They usually attacked freighters at night, shooting with their deck guns and then hiding under the water. Sometimes they used their torpedoes, which they could fire while underwater, especially against larger ships and warships. During World War II The US Navy lost around 52 submarines due to combat and non combat causes.
8
+
9
+ After World War II better sonar helped the enemies of submarines to find and destroy them. New subs were more streamlined and had no deck guns because water dragging against the guns made noise underwater and slowed the subs.
10
+
11
+ Most large modern military submarines are powered by nuclear reactors. These submarines often have a system which can get air from the seawater. These two things allow them to stay under water for long periods of time. Their most important uses are attacking ships or launching missiles. These include cruise missiles and nuclear missiles. There are two main kinds of subs. Attack submarines are small and fast. They attack other subs and surface ships with torpedos. Missile subs are larger and slower. They are built to shoot missiles at far-away targets on land.
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1
+ Subtraction is the arithmetic operation for finding the difference between two numbers. The special names of the numbers in a subtraction expression are, minuend - subtrahend = difference. The expression 7 - 4 = 3 can be spoken as "seven minus four equals three," "seven take away four leaves three," or "four from seven leaves three."
2
+
3
+ If the minuend is less than the subtrahend, the difference will be a negative number. For example, 17 - 25 = ( -8 ). We can say this as, "Seventeen minus twenty-five equals negative eight." This is how cash registers determine the change you receive when you pay with more money than your purchase costs.
4
+
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1
+
2
+
3
+ in the African Union  (light blue)
4
+
5
+ The Republic of South Africa is a country in the southern region of Africa. About fifty-five million people live there. South Africa is next to Namibia, Botswana, Zimbabwe, Mozambique, Lesotho and Swaziland.
6
+
7
+ The biggest city of South Africa is Johannesburg. The country has three capitals for different purposes. They are Cape Town, Pretoria, and Bloemfontein. This is because the government is based in Pretoria, the parliament is in Cape Town and the Supreme Court is in Bloemfontein.[8]
8
+
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+ There are 11 national languages. They are Afrikaans, English, Ndebele, Xhosa, Zulu, Swati, Setswana, Sesotho, Sesotho sa Leboa, Venda and Tsonga. They are also known as National Lexicography Units (NLUs). Because of all the languages, the country has an official name in each language.
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+ One of South Africa's most well known people is Nelson Mandela. He was its president from 1994 until 1999. He died in 2013. The current president is Cyril Ramaphosa.
12
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13
+ The first European people to come to South Africa were Portuguese explorers. In 1487, Bartolomeu Dias found what he called the "Cape of Storms". The king of Portugal changed it to "Cape of Good Hope". He called it this because the cape gave the Portuguese a new chance to find a sea route to India.
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+
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+ In 1652, Jan van Riebeeck colonized the Cape. He started the camp for the Dutch East India Company. This was so that they could give fresh food to ships on their way to the south of Asia. There were very few native people living in the Cape. Because of this, slaves were brought from Indonesia, Madagascar and India to work at the colony. In 1795, Great Britain took the Cape from the Dutch East India Company, to stop France from taking it. The British gave it back in 1803 but then annexed the Cape in 1807 when the Dutch East India Company went bankrupt.
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+ Diamonds were found in South Africa in 1867. Gold was found in 1884. This made a great number of people to come to South Africa from Europe. They were hoping to make money.
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+ The First Boer War happened in 1880-1881. The war was between the British and the Boers Republics. At that time, the British had the Cape. The Boer Republics were established when Dutch settlers moved north in the Great Trek. The British lost the war and came back 8 years later in 1899. They won this Second Boer War in 1902. The British had brought many more soldiers the second time. The Boers had no chance of winning. On 31 May 1910 the Union of South Africa was made from the Cape and Natal colonies. It was also made from Orange Free State and the Transvaal. These were two Boer Republics.
20
+
21
+ South Africa is found at the southernmost region of Africa, with a long coastline that reaches more than 2,500 km (1,553 mi) and along two oceans (the South Atlantic and the Indian). At 1,219,912 km2 (471,011 sq mi),[9] South Africa is the 25th-largest country in the world and is almost the size of Colombia. Njesuthi in the Drakensberg at 3,408 m (11,181 ft) is the highest part in South Africa.
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+
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+ The back of South Africa is a big and flat. It is a very populated scrubland, the Karoo, which is drier towards the northwest along the Namib desert. The eastern coastline however, is well-watered, which makes a climate kind of like the tropics.
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+ To the north of Johannesburg, the altitude drops beyond the escarpment of the Highveld. It then turns into the lower lying Bushveld, an area of mixed dry forest and a lot of wildlife. East of the Highveld, beyond the eastern escarpment, the Lowveld reaches towards the Indian Ocean. It has mostly high temperatures, and is also the location of subtropical agriculture.
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+
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+ South Africa has a mostly temperate climate. It is surrounded by the Atlantic and Indian Oceans on three sides, and is located in the climatically milder southern hemisphere. Average elevation is higher towards the north (towards the equator) and further inland. Because of this varied topography and oceanic influence, different parts of South Africa have different climates.
28
+
29
+ There is a desert in the southern Namib in the farthest northwest and subtropical climate in the east along the Mozambique border and the Indian ocean. From the east, the land quickly rises over mountains towards the back plateau known as the Highveld. Even though South Africa is thought as semi-arid, there is a difference in climate as well as topography.
30
+
31
+ The southwest has a climate similar to that of the Mediterranean with mild, moderately wet winters and hot, dry summers. This area also makes much of the wine in South Africa. This region is also mostly known for its wind, which blows almost all year. The wind can sometimes be severe when passing around the Cape of Good Hope mostly gets bad for sailors, making many shipwrecks. Further east on the south coast, rainfall falls more evenly throughout the year, making a green landscape. This area is popularly known as the Garden Route.
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+ The Orange Free State is mostly flat, because it lies in the center of the high plateau. North of the Vaal River, the Highveld becomes better watered and does not get subtropical heat. Johannesburg, in the center of the Highveld, is at 1,740 m (5,709 ft) and gets a yearly rainfall of 740 mm (29.9 in). Winters in this region are cold, although snow is rare.
34
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+ South Africa is ranked sixth out of the world’s 17 megadiverse countries,[10] with more than 20,000 different kinds of plants, or about 10% of all the known species of plants on Earth, making it very rich in plant biodiversity.
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+ The most common biome in South Africa is the grassland, mostly on the Highveld. This is where grasses, low shrubs, and acacia trees, mostly camel-thorn and whitethorn are more common then plants. Plants become even more less common towards the northwest. This is because of low rainfall. There are many species of water-storing plants like aloes and euphorbias in the very hot and dry Namaqualand area. The grass and thorn savanna turns slowly into a bush savanna towards the north-east of the country, with more thick growth. There are many numbers of baobab trees in this area, near the northern end of Kruger National Park.[11]
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+ South Africa's economy is divided. It is divided between First World and Third World standards. The developed part of the economy is similar to that of most nations with wealth (for example, Britain or Australia). The rest of the economy is closer to that of poor nations, such as the Democratic Republic of the Congo. The main companies in South Africa are mining (mostly for gold and diamonds), car making, and service industries, such as insurance.
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+
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+ Unemployment is very high. Income inequality is about the same as Brazil. During 1995–2003, the number of older jobs went down. Informal jobs went up. Overall unemployment got worse.[12] The average South African household income went down a lot between 1995 and 2000. As for racial inequality, Statistics South Africa said that in 1995 the average white household earned four times as much as the average black household. In 2000 the average white family was earning six times more than the average black household.[13]
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+ The action policies have seen a rise in black economic wealth. There is a developing black middle class.[14][15] Other problems are crime, corruption, and HIV/AIDS. South Africa suffers from mostly heavy overall regulation compared to developed countries. .[16] Restrictive labor rules have added to the unemployment weakness.[12]
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+ South Africa is a nation of about 50 million people of diverse origins, cultures, languages, and religions. The last census was held in 2001 and the next will be in 2011. Statistics South Africa had five racial categories by which people could classify themselves, the last of which, "unspecified/other" drew "not needed" responses, and these results were not counted.[17] The 2009 middle-year estimated figures for the other categories were Black African at 79.3%, White at 9.1%, Colored at 9.0%, and Asian at 2.6%.[18]
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+
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+ Even though the population of South Africa has grown in the past decade[17][19] (mostly because of immigration), the country had an yearly population growth rate of −0.501% in 2008 (CIA est.), counting immigration. The CIA thinks that in 2009 South Africa's population started to grow again, at a rate of 0.281%. South Africa is home to an estimated 5 million illegal immigrants, counting about 3 million Zimbabweans.[20][21][22] A series of anti-immigrant riots happened in South Africa beginning on 11 May 2008.[23][24]
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+ South Africa is divided into 9 provinces. The provinces are in turn divided into 52 districts: 8 metropolitan and 44 district municipalities. The district municipalities are further divided into 226 local municipalities.
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+ 1. Johannesburg
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+ 2. Cape Town
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+ 3. Durban
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+ 4. Pretoria
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+ It may be suggested that there is no single South African culture because of its ethnic diversity. Today, the diversity in foods from many cultures is enjoyed by all and marketed to tourists who wish to taste South African food. Food is not the only thing, music and dance is there too.
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+ South African food is mostly meat-based and has spawned the South African social gathering known as a braai, or barbecue. South Africa has also developed into a big wine maker. It has some of the best vineyards lying in valleys around Stellenbosch, Franschoek, Paarl and Barrydale.[27]
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+ South Africa is the only Western country of Africa.
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+ Most South African blacks still have poor lives. It is among these people, however, that cultural traditions live most strongly. This is because blacks have become urbanised and Westernised, much parts of traditional culture have fallen. Urban blacks normally speak English or Afrikaans in addition to their native tongue. There are smaller but still important groups of speakers of Khoisan languages who are not in the eleven official languages, but are one of the eight other officially recognized languages.
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+ Members of middle class, who are mostly white but whose ranks are growing numbers of black, colored and Indian people,[28] have lifestyles similar in many ways to that of people found in Western Europe, North America and Australasia. Members of the middle class often study and work from foreign countries for greater exposure to the markets of the world.
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+
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+ According to the 2001 national census, Christians accounted for 79.7% of the population. This has Zion Christian (11.1%), Pentecostal (Charismatic) (8.2%), Roman Catholic (7.1%), Methodist (6.8%), Dutch Reformed (6.7%), Anglican (3.8%); members of other Christian churches accounted for another 36% of the population. Muslims accounted for 1.5% of the population, Hinduism about 1.3%, and Judaism 0.2%. 15.1% had no religious affiliation, 2.3% were other and 1.4% were unspecified.[29][30]
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+ South Africa's most liked sports are soccer, rugby union and cricket. Other sports that are popular are swimming, athletics, golf, boxing, tennis and netball. Soccer is the most liked among youth. There are other sports like basketball, surfing and skateboarding that are becoming more liked.
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+ Famous boxers from South Africa are Baby Jake Jacob Matlala, Vuyani Bungu, Welcome Ncita, Dingaan Thobela, Gerrie Coetzee and Brian Mitchell. There are football players who have played for major foreign clubs. Some of them are Lucas Radebe and Philemon Masinga (both were of Leeds United), Quinton Fortune (Atletico Madrid and Manchester United), Benni McCarthy (Ajax Amsterdam, F.C. Porto and Blackburn Rovers), Aaron Mokoena (Ajax Amsterdam, Blackburn Rovers and Portsmouth), Delron Buckley (Borussia Dortmund) and Steven Pienaar (Ajax Amsterdam and Everton). South Africa made Formula One motor racing's 1979 world champion Jody Scheckter. Famous current cricket players are Herschelle Gibbs, Graeme Smith, Jacques Kallis, JP Duminy and more. Most of them also participate in the Indian Premier League.
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+ South Africa has also made many world class rugby players. Some of them are Francois Pienaar, Joost van der Westhuizen, Danie Craven, Frik du Preez, Naas Botha, and Bryan Habana. South Africa hosted and won the 1995 Rugby World Cup at their first try. They won the 2007 Rugby World Cup in France. South Africa was only allowed to participate from 1995 since the end of Apartheid. It followed the 1995 Rugby World Cup by hosting the 1996 African Cup of Nations. It had the national team, 'Bafana Bafana,' going on to win the tournament. It also hosted the 2003 Cricket World Cup. and the 2007 World Twenty20 Championship. Both of them were a great success.
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+ In 2010, South Africa became the first African nation to host the FIFA World Cup. The national team has competed in three World Cups. It bid for the right to stage the 2004 Olympic Games, but finished third to Athens. South Africa is also well known for their cricket team. They are right now the world's number one in test match cricket.
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+ The main schools span the first seven years of schooling. In the age of Apartheid, schools for blacks were subject to judgment through inadequate funding and so forth. Instruction can take place in Afrikaans as well. Public payment on education was at 5.4% of the 2002-05 GDP.[31]
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+ South Africa's military is the most powerful in southern Africa. South Africa spends more on its military than any of its neighboring countries do. They have very advanced weapons as a result. South Africa used to have nuclear weapons, but they were taken apart in 1993.
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1
+ The Soviet Union (short for the Union of Soviet Socialist Republics or USSR) [10] was a single-party Marxist–Leninist state. It existed for 69 years, from 1922 until 1991. It was the first country to declare itself socialist and build towards a communist society. It was a union of 14 Soviet Socialist Republics and one Soviet Federative Socialist Republic (Russia).
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+
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+ The Soviet Union was created about five years after the Russian Revolution. It was announced after Vladimir Lenin overthrew Alexander Kerensky as Russian leader. The communist government developed industry and over time became a major, powerful union. The largest country in the Union was Russia, and Kazakhstan was the second. The capital city of the Soviet Union was Moscow. The Soviet Union expanded its political control greatly after World War II. It took over the whole of Eastern Europe. Those countries were not made part of the Soviet Union, but they were controlled by the Soviet Union indirectly. These countries, like Poland, Czechoslovakia, and East Germany, were called satellite states.
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+ The top-level committee which made the laws was the Supreme Soviet of the Soviet Union. In practice, the General Secretary of the Communist Party of the Soviet Union was the leader and most important decision-maker in their system of government.
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+ Although the constitution said the Republics could leave the Union if they wanted, in practice it was a completely centralized government, with no states' rights for the member countries. Many believe[who?] that the Soviet Union was the final stage of the Russian Empire, since the USSR covered most of the land of the former Empire.
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+ The Union was formed with the professed idea to give everyone equal social and economic rights. There was virtually no private property—everything belonged to the state. 'Soviets', or workers' councils, were created by the working class to lead the socialist state democratically, but they soon lost power with the rise of Stalinism. The Union was successful in many fields, putting the first man and satellite into space and winning World War II alongside the United States and United Kingdom. However, its centralized government found innovation and change difficult to handle. The Union collapsed in 1991, partly due to the efforts at reform by its leader, Mikhail Gorbachev.
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+ Since 2013, the document that confirmed the dissolution of the Soviet Union has been missing.[11]
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+ The Soviet Union was made of 15 republics. These were either Soviet Socialist Republics, or Soviet Socialist Federal Republics. Each republic was independent and handled its own cultural affairs. Each also had the right to leave the union, which they did in 1991.
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+ The Federal Republics were different in that they had more autonomy, and were made up of states themselves. These were often called Autonomous Soviet Socialist Republics. There were a number of them. Most of them still exist; though they are now republics, within the independent state. The Tatar ASSR turned into the Republic of Tatarstan, for example (It is located around Kazan).
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+ The Soviet Union at its largest size in 1991, with 22,400,000 square kilometres (8,600,000 sq mi), was the world's biggest country. Covering a sixth of the world's lived in land, its size was comparable to North America's. The western part (in Europe) accounted for a quarter of the country's area, and was the country's cultural and economic center. The eastern part (in Asia) extended to the Pacific Ocean to the east and Afghanistan to the south, and was much less lived in than the western part. It was over 10,000 kilometres (6,200 mi) across (11 time zones) and almost 7,200 kilometres (4,500 mi) north to south. Its five climatic (different weather, temperature, humidity and atmospheric pressure) zones were tundra, taiga, steppes, desert, and mountains.
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+ The Soviet Union had the world's longest border, measuring over 60,000 kilometres (37,000 mi) in 1991. Two thirds of the Soviet border was coastline of the Arctic Ocean. Across the Bering Strait was the United States. The Soviet Union bordered Afghanistan, China, Czechoslovakia, Finland, Hungary, Iran, Mongolia, North Korea, Norway, Poland, Romania, and Turkey at the end of WWII.
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+ The Soviet Union's longest river was the Irtysh. The Soviet Union's highest mountain was Communism Peak (today it is called the Ismail Samani Peak) in Tajikistan measured at 7,495 metres (24,590 ft). The world's largest lake, the Caspian Sea, was mostly in the Soviet Union. The world's deepest lake, Lake Baikal, was in the Soviet Union.
22
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23
+ The last Russian Tsar (emperor), Nicholas II, ruled Russia until March 1917, when the Russian Empire was taken over and a short-lived "provisional government" replaced it, led by Alexander Kerensky and soon to be overthrown in November by Bolsheviks.
24
+
25
+ From 1917 to 1922, the country that came before the Soviet Union was the Russian Soviet Federative Socialist Republic (RSFSR), which was its own country, as were other Soviet republics at the time. The Soviet Union was officially created in December 1922 as the union of the Russian (also known as Bolshevist Russia), Ukrainian, Belarusian, and Transcaucasian Soviet republics ruled by the communist Bolshevik parties.
26
+
27
+ Extreme government-changing activity in the Russian Empire began with the Decembrist Revolt of 1825, and although serfdom was removed in 1861, its removal was achieved on terms unfavorable to the peasants (poor agricultural workers) and served to encourage changers (revolutionaries). A parliament (legislative assembly)—the State Duma—was created in 1906 after the Russian Revolution of 1905, but the Tsar protested people trying to move from absolute to constitutional monarchy. Rebellion continued and was aggravated during World War I by failure and food shortages in popular cities.
28
+
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+ A rebellion in Saint Petersburg, in response to the wartime decay of Russia's economy and morale, caused the "February Revolution" and the removal of the government in March 1917. The tsarist autocracy was replaced by the Russian "Provisional government", whose leaders intended to have elections to Russian Constituent Assembly and to continue war on the side of the Entente in World War I.
30
+
31
+ At the same time, workers' councils, known as Soviets, sprang up across the country. The Bolsheviks, led by Vladimir Lenin, pushed for socialist revolution in the Soviets and on the streets. In November 1917, during the "October Revolution", they took power from the Provisional Government. In December, the Bolsheviks signed an armistice (peace) with the Central Powers. In March, after more fighting, the Soviets quit the war for good and signed the Treaty of Brest-Litovsk.
32
+
33
+ In the long and bloody Russian Civil War the new Soviet power won. The civil war between the Reds and the Whites started in 1917 and ended in 1923. It included the Siberian Intervention and other foreign interference, the killing of Nicholas II and his family and the famine in 1921, which killed about 5 million. In March 1921, during a related conflict with Poland, the Peace of Riga was signed and split disputed territories in Belarus and Ukraine between the Republic of Poland and Soviet Russia. The Soviet Union had to resolve similar conflicts with the newly established Republic of Finland, the Republic of Estonia, the Republic of Latvia, and the Republic of Lithuania which had all escaped the empire during the civil war.
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+
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+ On 28 December 1922, people from the Russian SFSR, the Transcaucasian SFSR, the Ukrainian SSR and the Byelorussian SSR approved the Treaty of Creation of the USSR and the Declaration of the Creation of the USSR, creating the Union of Soviet Socialist Republics. These two documents were made true by the 1st Congress of Soviets of the USSR and signed by heads of delegations.
36
+
37
+ On 1 February 1924, the USSR was accepted as a country by the British Empire. Also in 1924, a Soviet Constitution (set of laws) was approved, making true the December 1922 union of the Russian SFSR, the Ukrainian SSR, the Belarusian SSR, and the Transcaucasian SFSR to form the "Union of Soviet Socialist Republics" (USSR).
38
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39
+ The big changes of the economy, industry and politics of the country began in the early days of Soviet power in 1917. A large part of this was performed according to Bolshevik Initial Decrees, documents of the Soviet government, signed by Vladimir Lenin. One of the most important and notable breakthroughs was the GOELRO plan, that planned a major change of the Soviet economy based on total electrification of the country. The Plan was developed in 1920 and covered a 10- to 15-year period. It included the making of a network of 30 regional power stations, including ten large hydroelectric power plants, and numerous electric-powered large industrial organizations. The Plan became the prototype for subsequent Five-Year Plans and was basically fulfilled by 1931.
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+ The End
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+
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+ From its beginning years, government in the Soviet Union was ruled as a one-party state by the Communist Party (Bolsheviks). After the economic policy of War Communism during the Civil War, the Soviet government permitted some private enterprise to coexist with nationalized industry in the 1920s and total food requisition in the countryside was replaced by a food tax (see New Economic Policy).
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+
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+ Soviet leaders argued that one-party rule was necessary because it ensured that 'capitalist exploitation' would not return to the Soviet Union and that the principles of Democratic Centralism would represent the people's will. Debate over the future of the economy provided the background for Soviet leaders to take more power in the years after Lenin's death in 1924. Initially, Lenin was to be replaced by a "troika" composed of Grigory Zinoviev of Ukraine, Lev Kamenev of Moscow, and Joseph Stalin of Georgia.
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+
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+ Stalin led the country through World War II and into the Cold War. Gulag camps greatly expanded to take millions of prisoners. After he died, Georgy Malenkov, continued his policies. Nikita Khrushchev reversed some of Stalin's policies but Leonid Brezhnev and Alexei Kosygin kept things as they were.
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+ After the 1936 revised constitution, the Soviet Union stopped acting as a union of republics and more as a single super-country.
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+ Stalin died on 5 March 1953. Nikita Khrushchev eventually won the following power struggle by the mid-1950s. In 1956 he denounced Stalin's repression and eased controls over party and society. This was known as de-Stalinization.
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+ Moscow considered Eastern Europe to be a very vital buffer zone for the forward defense of its western borders. For this reason, the USSR sought to strengthen its control of the region. It did this by transforming the Eastern European countries into satellite states, dependent upon and obedient to its leadership. Soviet military force was used to suppress anti-Stalinist uprisings in Hungary and Poland in 1956.
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+ In the late 1950s, a confrontation with China regarding the USSR's policies led to the Sino–Soviet split. This resulted in a break throughout the global Marxist–Leninist movement. The governments in Albania, Cambodia and Somalia chose to ally with China instead of the USSR.
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+
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+ During this period of the late 1950s and early 1960s, the Soviet Union continued to make progress in the Space Race. It rivalled the United States. The USSR launched the first artificial satellite, Sputnik 1 in 1957; a living dog named Laika in 1957; the first human being, Yuri Gagarin in 1961; the first woman in space, Valentina Tereshkova in 1963; Alexei Leonov, the first person to walk in space in 1965; the first soft landing on the Moon by spacecraft Luna 9 in 1966; and the first Moon rovers, Lunokhod 1 and Lunokhod 2.
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+ Leonid Brezhnev led the Soviet Union from 1964 until his death in 1982. He came to power after he convinced the government to overthrow the then-leader Nikita Krushchev. Brezhnev's rule is often linked with the decline in Soviet economy and starting the chain of events that would lead to the union's eventual collapse. He had many self-awarded medals. He was awarded Hero of the Soviet Union (the highest honor) on three separate occasions. Brezhnev was succeeded by Yuri Andropov, who died a few years later. Andropov was succeeded by the frail and aging Konstantin Chernenko. Chernenko died a mere year after taking office.
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+ In 1980 the Soviet Union hosted the Summer Olympics with Brezhnev opening and closing the games. The games were heavily boycotted by the western nations, particularly the United States. During the closing ceremony, the flag of the City of Los Angeles was raised instead of the flag of the United States (to symbolise the next host city/nation) and the anthem of the Olympics was played instead of the anthem of the United States in response to the boycott.
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+ Brezhnev was the second longest serving Soviet leader after Stalin. The Following is a list of leaders (General Secretary of the Communist Party) in order of their tenure and length of leadership:
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+ Khrushchev and Gorbachev are the only Soviet leaders to have not died whilst in office. Lenin, Stalin and Khrushchev are the only leaders who were not (de jure) head of state during their leaderships.
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+ Mikhail Gorbachev was the Soviet Union's last leader. He was the only Soviet leader to have been born after the October revolution and was thus a product of the Soviet Union having grown up in it. He and US president Ronald Reagan signed a treaty to get rid of some nuclear weapons. Gorbachev started social and economic reforms that gave people freedom of speech; which allowed them to criticise the government and its policies. The ruling communist party lost its grip on the media and the people. Newspapers began printing the many failures that the Soviet Union had covered up and denied in its past. The Soviet Union's economy was lagging and the government was spending a lot of money on competing with the west.
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+ By the 1980s the Soviet economy was suffering but it was stable. Gorbachev's new ideas had gotten out of hand and the communist party lost control. Boris Yeltsin was elected (democratically) the President of the Russian SFSR even though Gorbachev did not want him to come into power. Lithuania announced its independence from the Union and the Soviet government demanded it surrender its independence or it would send the Red Army to keep order. Gorbachev invented the idea of keeping the Soviet Union together with each republic being more independent but under the same leader. He wanted to call it the 'Union of Soviet Sovereign Republics' to keep the Russian initials as CCCP (USSR in English).
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+ A group of communist leaders, unhappy with Gorbachev's idea, tried to take over Moscow and stop the Soviet Union from collapsing. It only made people want independence more. Although he survived the attempted takeover, he lost all of his power outside of Moscow. Russia declared independence in December 1991. Later in the month, leaders of Russia, Byelorussia and Ukraine signed a treaty called the Belavezha Agreement to dissolve the USSR, extremely angering Gorbachev. He had no choice but to accept the treaty and resigned on Christmas Day 1991. The Soviet Union's parliament (Supreme Soviet) made the Belavezha Agreement law, marking formally the dissolution of the Soviet Union. The next day the Soviet flag was lowered from the Kremlin for the last time.
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1
+ An astronaut or cosmonaut is a person who goes into outer space. The Soviet Union and countries that it was friends with used the word cosmonaut. Western countries including the United States said astronaut. Astronauts are also called "taikonauts" in China or "spationaute" in France.
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+
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+ The first person to go into space was a Russian from the Soviet Union. His name was Yuri Gagarin. This happened on April 12, 1961. The first and second people to walk on the Moon were the Americans Neil Armstrong and Buzz Aldrin. This happened on July 20, 1969. No astronauts have gone to the moon since 1972. No people have visited any other planets yet.
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+ Astronauts used to go into space using many different ways, but now they only go on the Soyuz and Shenzhou. Several countries have worked together to build an International Space Station where people stay and work in space for long periods of time.
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+ A few countries and companies are trying to make more ways to get people into space. The United States is building a very big rocket called the Space Launch System. Some American companies, for example Boeing, Lockheed Martin, and SpaceX, are being paid by the United States to make ways for people to go to space.
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1
+ Bangladesh (officially called People's Republic of Bangladesh) is a country in South Asia. It is next to the North-east Indian provincial regions of India, which converges with Southeast Asia to the east. Its full name is The People's Republic of Bangla-Desh. The capital and the largest city is Dhaka (formerly "Dacca"). Bangladesh is surrounded on all three sides by the Republic of India (Bharat), and Myanmar (Burma) on the south-eastern corner. It is near the People's Republic of China, Bhutan, Sikkim and Nepal.
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+ It declared itself as independent in 1971 from Pakistan after a civil war in which over a million people died. After Indian military intervention, the provisional government returned from exile in Calcutta, Bengal (India). After the Instrument of Surrender, the Bengali peoples became a sovereign nation. Its founder was released from political imprisonment in 1972. Present day Bangladesh has an area of 55,049 mi² or (142,576 km²) and it is bigger than the Somali breakaway territory of Somaliland, but is smaller than the Turkic state of Kyrgyzstan. It is slightly smaller than Iowa and the Indian state of Orissa. It ranks 92 out of 195 sovereign countries by area.
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+ Bangladesh is a predominantly Muslim country.[7]
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+ The currency is called taka. The official language is Bengali.
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+ There are two main rivers in Bangladesh; the Ganges and Brahmaputra Rivers are holy to Hindus. There are often floods because of these two rivers.
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+ Bangladesh is a new country in an ancient land. Like the rest of South Asia, it has been described as continually challenged by contradictions, marred by inconsistencies to say the least. It is neither a distinct geographical entity, nor a well-defined historical unit. Nevertheless, it is among the 10 most populous nations; a place whose search for a political identity has been protracted, intense and agonizing.
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+
13
+ The word Bangladesh is derived from the word “Vanga” which was first mentioned in the Hindu scripture Aitareya Aranyaka (composed between 500 BC and 500 AD). Bengal was reputedly first colonized by Prince Vanga, the son of King Bali and Queen Sudeshna of the Lunar dynasty. The roots of the term Vanga may be traced to languages in the neighbouring areas. One school of linguists maintain that the word “Vanga” is derived from the Tibetan word “Bans” which implies “wet and moist”. According to this interpretation, Bangladesh literally refers to a wetland. Another school is of the opinion that the term “Vangla” is derived from Bodo (aborigines of Assam) words “Bang” and “la” which connote “wide plains.” The exact origin of the word Bangla or Bengal is unknown, though it is believed to be derived from the Dravidian-speaking tribe Bang/Banga that settled in the area around the year 1000 BCE. Other accounts speculate that the name is derived from Vanga (bôngo), which came from the Austric word "Bonga" meaning the Sun-god. According to Mahabharata, Purana, Harivamsha Vanga was one of the adopted sons of king Vali who founded the Vanga Kingdom. The Muslim Accounts refer that "Bong", a son of Hind (son of Hām who was a son of Prophet Noah/Nooh) colonized the area for the first time. The earliest reference to "Vangala"(bôngal) has been traced in the Nesari plates (805 AD) of Rashtrakuta Govinda III which speak of Dharmapala as the king of Vangala. Shams-ud-din Ilyas Shah took the title "Shah-e-Bangalah" and united the whole region under one government for the first time.
14
+
15
+ The West Bengal assembly has passed a resolution saying the Indian state of West Bengal will, henceforth, be called Pashchim Banga. Will Bangladesh follow too? No one will tell you what ‘Bang’ in Bangladesh means, except some bold joiners of the dots in ancient history. Bangladesh is old Banga or Bangla with a history as old as 1,000 BC. Does it originate in the Tibetan word ‘bans’ which means wet or moist? Banga (Bengal) is a wet country, criss-crossed by a thousand rivers and washed by monsoons and floods from the Himalayas. The Chinese text Wei-lueh (3rd century AD) referred to Pan-yueh (i.e. Vanga) as the country of Han-yueh (Xan-gywat) or the Ganga. Some others believe that the name originated in the Bodo (original Assamese in North Eastern India) ‘Bang La’, which means wide plains. One of the tribes which emerged from the Indus Civilisation after its demise had entered the plains of Bengal, while others went elsewhere. They were called the Bong tribe and spoke Dravidian. We know from many ancient Aryan texts of a tribe called Banga.
16
+
17
+ Anciently, Sri Lanka was Singhal, home of lions, which changed to Sihala (sic!) in 543 BC. (We have our Sihala near Islamabad.) The Portuguese called it Cilaon probably from Sanskrit Sri Lanka, which the Sri Lankans prefer today. The Portuguese are funny. They changed Arabic ‘mausim’ to ‘monsaon’, which has given us the word ‘monsoon’. In Punjabi, the word ‘aal’ is found in two words: ‘aalna’ (diminutive) for nest and ‘aalay-dawalay’ for ‘that which surrounds’. The name Gujranwala was formed from Gujran-aala. ‘Him’ in Sanskrit means ‘frozen’, from where we have the word Himal or Himala. ‘Shivala’, used by Allama Iqbal in Urdu, means home of Shiva.
18
+
19
+ From the sense of ‘surrounding’ we get the Hindi word ‘aali’ which is the root of our Urdu word ‘sahaili’ meaning ‘friend of the bride’ because girlfriends sit ‘around’ the bride. ‘Sa’ is the prefix for ‘good’. This could be cognate with ‘saali’ (sister-in-law) and ‘saala’. The home of the father-in-law (sassur) is called ‘sassur-aal’. Lovers too are included, as in the bhajan ‘angana main ayay aali’. Here ‘aali’ is master (of home). In Sanskrit there are dozens of words for home, many of them indirect like ‘aal’. In the Urdu word ‘ghonsala’ (nest) there is ‘ghun’ (concealed) and ‘shala’ (home). A whole lot of them come from the sense of being ‘cut off’. Of that next time. Remnants of civilisation in the greater Bengal region date back four thousand years, when the region was settled by Dravidian, Tibeto-Burman, and Austro – Asiatic peoples. The exact origin of the word “Bangla” or “Bengal” is not known, though it is believed to be derived from Bang, the Dravidian-speaking tribe that settled in the area around the year 1000 BCE. The same is applies to the naming of Bangala desh or Bangadesh. There are various logic presented by various people of various disciplines.
20
+
21
+ The Banga-desh is a land of the two mighty rivers of India, one flows from east and other one from west. The area covered jointly by these two rivers were probably known as “Ganga Lohit Desha”, which gradually became Gangalo Desh and Gangal Desh and then to Bangal Desh or Bangla desh or Bangadesha. Bangalo in place of Gangal is probably used to differentiate from the land of Ganga, i.e., from Hardwar onwards along the route of Ganga.
22
+
23
+ ”Banga” means a place located near to river in Sanskrit, which fits with both the parts of Bengal.
24
+ “alaya” (As in Himalaya) in Sanskrit means “house” Bangla is also known as Vanga. The movement against break up of Bagladesh by British was famously known as “Vang Bhang” movement. Bhang in Hindi means -to break. You are right about “aal” as home. Actually, “aalay” means home itself. “Devalay” home of Gods, that is Temple, Mrigalay is home of animals (mrig), that is Zoe. Vanga has thus been a distinct geographical identity and the restoration of the old name can be one option. And Bengal is nothing but the Vanga, and the easiest way to maintain the legacy is to drop the 'West' from West Bengal. Vanga is synonymous with Banga because the alphabets V and B are interchangeable in Sanskrit. Banga in its etymological sense means Vanga or Vanka — marshy land. It denotes the entire stretch of lower Bengal when the sea receded and the landmass became fit for human habitation. One more thought BANGA – BA stands for river Brahmaputra and NGA for Ganga, as both the river meets here.
25
+
26
+ Nepal: Naya-pal Kingdom of Naya - Bengal: Vaang desh
27
+
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+ The delta and surrounding hills has been inhabited for hundreds of generations (thousands of years).[8] The area supported agriculture very early on. About 500 BC there was a shift to growing rice.[8] This led to the development of urban areas. Because there were no stone quarries in the area houses were built of wood and mud (including adobe). Because of the monsoon climate very little evidence of the earliest inhabitants remains.[8] From about 300 BC to the 1700s AD the Bengal delta saw the development of writing, the Bengali language, religions and the rise and fall of states.[8] By the 1500s, the area was prosperous and even peasants had plenty to eat.[9]
29
+
30
+ The Islamic faith took in shape foothold in the 13th century when it fell to Turkish armies. The last major Hindu Sena ruler was expelled from his capital at Nadia in Western Bengal in 1202, although lesser Sena rulers held sway for a short while after in Eastern Bengal.
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+
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+ Bengal was loosely associated with the Delhi Sultanate, established in 1206, and paid a tribute in War elephants in order to maintain autonomy. In 1341 Bengal became independent from Delhi, and Dhaka was established as the seat of the governors of independent Bengal. Turks ruled Bengal for several decades before the conquest of Dacca by forces of the Mughal Emperor Akbar the Great (1556-1605) in 1576. Bengal remained a Mughal Province until the beginning of the decline of the Mughal Empire in the eighteenth century.
33
+
34
+ Under the Mughals, the political integration of Bengal with the rest of the subcontinent began, but Bengal was never truly subjugated. It was always too remote from the centre of government in Delhi. Because lines of communications were poor, local governors found it easy to ignore imperial directives and maintain their independence. Although Bengal remained provincial, it was not isolated intellectually, and Bengali religious leaders from the fifteenth century onwards have been influential throughout the subcontinent.
35
+
36
+ The Mughals in their heyday had a profound and lasting effect on Bengal. When Akbar ascended the throne at Delhi, a road connecting Bengal with Delhi was under construction and a postal service was being planned as a step toward drawing Bengal into the operations of the empire. Akbar implemented the present-day Bengali calendar, and his son, Jahangir (1605-27), introduced civil and military officials from outside Bengal who received rights to collect taxes on land.
37
+
38
+ The development of the zamindari (tax collector and later landlord) class and its later interaction with the British would have immense economic and social implications for twentieth-century Bengal. Bengal was treated as the "Breadbasket of India" and, as the richest province in the empire, was drained of its resources to maintain the Mughal Army. The Mughals, however, did not expend much energy protecting the countryside or the capital from Arakanese or Portuguese pirates; in one year as many as 40,000 Bengalis were seized by pirates to be sold as slaves, and still the central government did not intervene. Local resistance to imperial control forced the emperor to appoint powerful generals as provincial governors. Yet, despite the insecurity of the Mughal regime, Bengal prospered. Agriculture expanded, trade was encouraged, and Dhaka became one of the centres of the textile trade in South Asia.
39
+
40
+ In 1704 the provincial capital of Bengal was moved from Dhaka to Murshidabad. Although they continued to pay tribute to the Mughal court, the governors became practically independent rulers after the death in 1707 of Aurangzeb, the last great Mughal emperor. The governors were strong enough to fend off marauding Hindu Marathas from the Bombay area during the eighteenth century. When the Mughal governor Alivardi died in 1756, he left the rule of Bengal to his grandson Siraj ud Daulah, who would lose Bengal to the British the following year. For the last half a century Bangladesh used to be called East Bengal, after they had fought hard for a united Muslim Indian homeland in 1947 and was made politically a part of the United Pakistan, However, by 1955 its citizens were commonly referred to as East Pakistanis. Dacca was then the legislative capital of Pakistani Bengal provincial region. The peoples of East Pakistan were mostly ethnic Bengalis who had a different language and culture to the people of western Pakistani. These differences eventually led to the so-called Bangladesh Liberation War. On 16 December 1971, Bangladesh gained independence, with the help of allied forces against West Pakistani forces. Nonetheless, the very existence of a Bangladesh state is a blow to the rhetoric of Islamic Unity that most Pakistanis and Muslims in general like to crow about. The present-day Muslims of Bangladesh live in greater harmony with its 14% Hindu minority counterpart than they did with Muslims of non-Bengali origins. Bangladesh is not the only case where interests other than Islamic Unity have proven more powerful. The quick disintegration of the United Arab Republic, a union of Syria and Egypt that combined Islam, Asabiyyah (Arab nationalism) and external threat (from Israel), is another case of Islamic entities splitting for interests other than Islam, other examples of co-existing Islamic countries cohabiting side by side with each other are the entities of Kuwait and Iraq, Brunei and Malaysia as neighbourly and have brotherly diplomatic relations on a mission level.
41
+
42
+ After the birth of Bangladesh, Bangla replaced Urdu and English as the sole national and official language, and was the language taught in schools and used in business and government. The Bangla Academy was important in this change. In the 1980s, British-style education was maintained through private English-language institutions attended by upper class children. English continued to be taught in higher education and was offered as a subject for university degrees.
43
+
44
+ At first, Arabic also lost ground in independent Bangladesh. This trend ended in the late 1970s, however, after Bangladesh strengthened its ties with Saudi Arabia and other oil-rich, Arabic-speaking countries. An unsuccessful attempt was made in 1983 to introduce Arabic as a required language in primary and secondary levels. Arabic is widely studied in Madrassas and Islamic institutions around the country for better understanding of the Qurān, Hadith and any other Islamic texts.
45
+
46
+ For much of its history the area was simply just called Bengal and was considered a part of India.[10] The last few centuries several foreign powers involved themselves with the area resulting in several wars.[10] The 20th century brought more wars, genocide, and political states. Bengal was under British rule from 1757–1947.[11] It was a part of British India. In 1947 East Bengal and the Dominion of Pakistan were separated from present-day Republic of India and thus formed a new birth of country named Pakistan.[11] But the east and west provinces were on either side of India and separated by 930 miles (1,500 km).[12] In 1949 the Bangladesh Awami League formed to favor separation between east and west Pakistan.[12] In 1955 East Bengal was renamed East Pakistan. Dacca was then the legislative capital of Pakistani Bengal provincial region. The peoples of East Pakistan were mostly ethnic Bengalis who had a different language and culture to the people of western Pakistan. These differences eventually led to the Bangladesh Liberation War. On 16 December 1971, Bangladesh gained independence, with the help of allied forces against West Pakistani forces.
47
+
48
+ The East Bengal Legislative Assembly was the law-making body of the province of East Bengal. It was later renamed the East Pakistan Legislative Assembly and would be succeeded by the Jatiyo Sangshad in 1971.
49
+
50
+ After the birth of Bangladesh, Bangla replaced Urdu and English as the sole national and official language, and was the language taught in schools and used in business and government. The Bangla Academy was important in this change. In the 1980s, British-style education was maintained through private English-language institutions attended by upper class children. English continued to be taught in higher education and was offered as a subject for university degrees.
51
+
52
+ At first, Arabic also lost ground in independent Bangladesh. This trend ended in the late 1970s, however, after Bangladesh strengthened its ties with Saudi Arabia and other oil-rich, Arabic-speaking countries. An unsuccessful attempt was made in 1983 to introduce Arabic as a required language in primary and secondary levels. Arabic is widely studied in Madrassas and Islamic institutions around the country for better understanding of the Quran, Hadith and any other Islamic texts.
53
+
54
+ The President, while Head of State, holds a largely ceremonial post, with the real power held by the Prime Minister, who is Head of Government. The president is elected by the legislature every 5 years and his normally limited powers are substantially expanded during the tenure of a Caretaker Government, mainly in controlling the transition to a new government.
55
+
56
+ The prime minister is appointed by the president and must be a member of parliament (MP) whom the president feels commands the confidence of the majority of other MPs. The Cabinet is composed of ministers selected by the prime minister and appointed by the president.
57
+
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+ The Unicameral Bangladeshi parliament is the House of the Nation or Jatiya Sangsad, whose 300 members are elected by popular vote from single territorial constituencies for five-year terms of office. The highest Judiciary body is the Supreme Court, of which the chief justices and other judges are appointed by the president.
59
+
60
+ After its independance from Pakistan, the people of Bengal thereon had formally become Bangladeshis and they became a Parliamentary democracy, with Mujib as the Prime Minister. In the 1973 parliamentary elections, the Awami League gained an absolute majority. A nationwide famine occurred during 1973 and 1974, and in early 1975, Mujib initiated a one-party socialist rule with his newly formed BAKSAL. On the August 15th, 1975, Mujib and his family were a target for assassination by mid-level military officers.
61
+
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+ A series of bloody coups and counter-coups in the following three months culminated in the ascent to power of General Ziaur Rahman, who reinstated multi-party politics and founded the Bangladesh Nationalist Party (BNP). Zia's rule ended when he was himself assassinated in 1981 by elements of the junta military. Bangladesh's next major ruler was General Hossain Mohammad Ershad, who gained power in a bloodless coup in 1982 and ruled until 1990, when he was forced to resign under western donor pressure in a major shift in international policy after the end of communism when anti-communist dictators were no longer felt necessary. Since then, Bangladesh has reverted to a parliamentary democracy. Zia's widow, Khaleda Zia, led the Bangladesh Nationalist Party to parliamentary victory at the general election in 1991 and became the first female Prime Minister in Bangladesh's history and the second one in the Muslim world. However, the Bangladesh Awami League, headed by Sheikh Hasina, one of Mujib's surviving daughters, clinched power at the next election in 1996 but lost to the Bangladesh Nationalist Party again in 2001.
63
+
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+ In January 11, 2007, following widespread violence, a caretaker government was appointed to administer the next general election. The country had suffered from extensive corruptions, disorder and political violence. The new caretaker government has made it a priority to root out corruption from all levels of government. To this end, many notable politicians and officials, along with large numbers of lesser officials and party members, have been arrested on corruption charges. The caretaker government held a fair and free election on December 29, 2008. Awami League's Sheikh Hasina won the elections with a landslide victory and took oath of Prime Minister on the 6th January 2009.
65
+
66
+ Despite 46 years of independence, Bangladesh is still a poor country and has problems with corruption and political troubles as the other country have. Presently more than half of the people can read and write.
67
+
68
+ Bangladesh has heavy cyclones and natural disasters, due to this many lives are often lost. The country is one of the most densely populated in the world. Cyclones are very common in the Bay of Bengal during the middle of the year, particularly in the south of country in areas like Sundarban, Chittagong, Cox's Bazaar,or in neighboring Myanmar and Republic of India. Despite the many storms, Bangladesh does not have a very effective storm prevention system, and cyclones usually inflict heavy damage.
69
+
70
+ Bangladesh is in the Ganges Delta. This is where the Ganges, Brahmaputra, and Meghna come together. Most parts of Bangladesh are less than 12 m (39.4 ft) above the sea level. The highest point in Bangladesh is in Mowdok range at 1,052 m (3,451 ft) in the Chittagong Hill Tracts to the southeast of the country.[13] Cox's Bazar, south of the city of Chittagong, has a beach that is uninterrupted over 120 km (75 mi).
71
+
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+ A large part of the coastline is a marshy jungle, the Sundarbans. They are the largest mangrove forest in the world.
73
+
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+ Bangladesh is divided into eight administrative divisions,:[14][15] Barisal (বরিশাল), Chittagong (চট্টগ্রাম), Dhaka (ঢাকা), Khulna (খুলনা), Rajshahi (রাজশাহী), Sylhet (সিলেট), and Rangpur (রংপুর).
75
+
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+ Divisions are divided into districts. There are 64 districts in Bangladesh.
77
+
78
+ Dhaka is the capital and largest city of Bangladesh. Other major cities include Chittagong, Khulna, Rajshahi, Sylhet, Barisal, Bogra, Comilla, Mymensingh and Rangpur. For more locations see List of settlements in Bangladesh.
79
+
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+ The main religion in Bangladesh is Islam (85%). Many people also follow Hinduism (14%).[17] Most Muslims are Sunni. Islam was made the state religion in the 1980s. Christians make up less than 1% of the population.
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+
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+ The earliest literary text in Bengali is the 8th century Charyapada. Medieval Bengali literature was often either religious or from other languages. The 19th century had poets such as Rabindranath Tagore, Michael Madhusudan Dutt and Kazi Nazrul Islam.
83
+
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+ The musical tradition of Bangladesh is lyrics-based with little instruments. Folk music is often accompanied by the ektara, an instrument with only one string. Bangladeshi dance forms are from folk traditions.
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+
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+ Bangladesh makes about 80 films a year.[18] Mainstream Hindi films are also quite popular.[19] Around 200 daily newspapers are published in Bangladesh, along with more than 500 magazines.
87
+
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+ Rice and fish are traditional favourite foods. Biryani is a favourite dish of Bangladeshis.
89
+
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+ The sari is by far the most widely worn dress by Bangladeshi women.The salwar kameez (shaloar kamiz) is also quite popular among especially the younger females, and In urban areas some women wear western attire. Among men, western attire is more widely worn.
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+
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+ Eid ul-Fitr and Eid ul-Adha have major festivals. Buddha Purnima, which marks the birth of Gautama Buddha, and Christmas, called Bôŗodin (Great day), are both national holidays. The most important non-religious festival is Pohela Boishakh or Bengali New Year, the beginning of the Bengali calendar.
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+ Cricket is the most popular sport in Bangladesh. Next is football (soccer). The national cricket team was in their first Cricket World Cup in 1999. In 2011, Bangladesh successfully co-hosted the ICC Cricket World Cup 2011 with India and Sri Lanka.
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+
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+ Hadudu (kabaddi) is the national sport in Bangladesh. Other popular sports include field hockey, tennis, badminton, handball, basketball, volleyball, chess, shooting, angling, and carrom.
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+ The National symbols of the Bangladesh consist of symbols to represent Bengali traditions and ideals that reflect the different aspects of the cultural life and history of the country.
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1
+ Spartacus (circa 120 BC[1] – circa 70 BC, at the end of the Third Servile War), according to Roman historians, was a gladiator-slave who became the leader of an unsuccessful slave uprising against the Roman Republic.
2
+
ensimple/5471.html.txt ADDED
@@ -0,0 +1,29 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Sparta is a city in Greece. It is the capital of the Laconia prefecture. It is in the south of Peloponnese peninsula. During antiquity, it was extremely powerful. Today, it is a small city. 16,726 people lived there according to the 2001 census. The word Spartan is used to describe somebody who lives a simple life or somebody who suffered a lot without crying or showing that they suffered.[1] It can also mean a life of simplicity, without anything fancy or costly.[2]
2
+
3
+ Sparta is in the mountainous region of Laconia.[3]:225 This is in the south-east of the Peloponnese. Ancient Sparta was built on the banks of the Evrotas River.[3]:225 The river flows through a valley with mountains on each side. To the west is the Taygetus Range (highest point 2407 m) and to the east is the Parnon Range (highest point 1935 m). Because the ancient Spartans had such good natural defenses, they did not need city walls.[3]:225
4
+
5
+ In Ancient Greece Sparta was a city-state with a very strong army and a government that was well led. Sparta was known as one of the strongest city-states in Greece. Only the strongest survived in Sparta, male or female. The Spartans killed weak children. If they believed that a baby was too weak, they left it out to die of exposure beside a slope on Mount Taygetus.[3]:240 This place was called the Apothetae, which meant 'the place of rejection'.[3]:240
6
+
7
+ Sparta had a government with checks and balances. The executive branch was led by two kings. The legislative branch was led by the citizens. and the judicial branch was controlled by the elders. There was also a committee of five men who were in charge of the education process that young boys and girls went through. Boys and girls were taken from their parents at the age of 7. Boys went to live in barracks with other boys their age. Girls went to school to learn gymnastics, wrestling, and other activities.
8
+
9
+ Laconophilia is love or liking of Sparta and of the Spartan culture. Sparta was often admired when it ruled. Long ago, "Many of the noblest and best of the Athenians always considered (thought) the Spartan state nearly as an ideal theory realised in practice".[4] Many Greek philosophers, especially Platonists, would often describe Sparta as a good state, strong, brave, and free.
10
+
11
+ Sparta was also seen as a model of social purity by Revolutionary and Napoleonic France.[5]
12
+
13
+ Adolf Hitler thought Sparta was very good. He said in 1928 that Germany should be like them by making smaller "the number allowed to live". The Spartans had created "the first racialist state".[6]
14
+
15
+ Young Spartans boys were taken from their homes at the age of seven to begin a military life. The Spartans became soldiers at age 20, citizens at age 30, and retired at age 60. Men trained hard to become warriors of the Spartan army. Women were encouraged to keep healthy so that they could produce healthy, fit babies to grow up to be strong. Spartans saw little moral value in the concept of childbirth; unless the child was fit to become a Spartan, he would die.
16
+
17
+ Spartan men married when they were 30 years old.[7] Plutarch writes of the strange custom of the Spartans for their wedding night:
18
+
19
+ The custom was to capture women for marriage...The...'bridesmaid' took charge of the captured girl. She first shaved her head...then dressed her in a man's cloak and sandals, and laid her down alone on a mattress in the dark. The bridegroom...first had dinner...then would slip in...lift her and carry her to the bed.[8]
20
+
21
+ The husband kept on visiting his wife in secret for some time after the marriage. Only Spartans did these customs. Some people think that the cutting off of the wife's hair was a ceremony that showed she was going into a new life.[9]
22
+
23
+ Sparta conquered the people of Messenia and Lakonia (the surrounding countryside) at around 680–560 BC. These people became known as the helots. They were not slaves: they were serfs. They had a lower position in society, like serfs in mediaeval Europe.[7]
24
+
25
+ Helots spent their lives farming their Spartan masters kleros (land granted to Spartan citizens). The Spartan poet Tyrtaios says helots were allowed to marry and keep half the fruits of their labor.[10] At most times, the helots outnumbered their Spartan masters 10 to 1. They rebelled often, but they were never able to overthrow their oppressors.
26
+
27
+ Once a Spartan reached the age of 20, he or she would then become a homoios. A homoios was a member of the ruling class (a citizen). Both men and women were citizens. Sparta was an unusual society for women's rights, because women were considered to be equal.
28
+
29
+ The Spartan army used the phalanx formation. This contributed to the many battles Sparta won. Their most famous loss is the Battle of Thermopylae where 300 Spartans held off a large Persian army for a week.
ensimple/5472.html.txt ADDED
@@ -0,0 +1,29 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Sparta is a city in Greece. It is the capital of the Laconia prefecture. It is in the south of Peloponnese peninsula. During antiquity, it was extremely powerful. Today, it is a small city. 16,726 people lived there according to the 2001 census. The word Spartan is used to describe somebody who lives a simple life or somebody who suffered a lot without crying or showing that they suffered.[1] It can also mean a life of simplicity, without anything fancy or costly.[2]
2
+
3
+ Sparta is in the mountainous region of Laconia.[3]:225 This is in the south-east of the Peloponnese. Ancient Sparta was built on the banks of the Evrotas River.[3]:225 The river flows through a valley with mountains on each side. To the west is the Taygetus Range (highest point 2407 m) and to the east is the Parnon Range (highest point 1935 m). Because the ancient Spartans had such good natural defenses, they did not need city walls.[3]:225
4
+
5
+ In Ancient Greece Sparta was a city-state with a very strong army and a government that was well led. Sparta was known as one of the strongest city-states in Greece. Only the strongest survived in Sparta, male or female. The Spartans killed weak children. If they believed that a baby was too weak, they left it out to die of exposure beside a slope on Mount Taygetus.[3]:240 This place was called the Apothetae, which meant 'the place of rejection'.[3]:240
6
+
7
+ Sparta had a government with checks and balances. The executive branch was led by two kings. The legislative branch was led by the citizens. and the judicial branch was controlled by the elders. There was also a committee of five men who were in charge of the education process that young boys and girls went through. Boys and girls were taken from their parents at the age of 7. Boys went to live in barracks with other boys their age. Girls went to school to learn gymnastics, wrestling, and other activities.
8
+
9
+ Laconophilia is love or liking of Sparta and of the Spartan culture. Sparta was often admired when it ruled. Long ago, "Many of the noblest and best of the Athenians always considered (thought) the Spartan state nearly as an ideal theory realised in practice".[4] Many Greek philosophers, especially Platonists, would often describe Sparta as a good state, strong, brave, and free.
10
+
11
+ Sparta was also seen as a model of social purity by Revolutionary and Napoleonic France.[5]
12
+
13
+ Adolf Hitler thought Sparta was very good. He said in 1928 that Germany should be like them by making smaller "the number allowed to live". The Spartans had created "the first racialist state".[6]
14
+
15
+ Young Spartans boys were taken from their homes at the age of seven to begin a military life. The Spartans became soldiers at age 20, citizens at age 30, and retired at age 60. Men trained hard to become warriors of the Spartan army. Women were encouraged to keep healthy so that they could produce healthy, fit babies to grow up to be strong. Spartans saw little moral value in the concept of childbirth; unless the child was fit to become a Spartan, he would die.
16
+
17
+ Spartan men married when they were 30 years old.[7] Plutarch writes of the strange custom of the Spartans for their wedding night:
18
+
19
+ The custom was to capture women for marriage...The...'bridesmaid' took charge of the captured girl. She first shaved her head...then dressed her in a man's cloak and sandals, and laid her down alone on a mattress in the dark. The bridegroom...first had dinner...then would slip in...lift her and carry her to the bed.[8]
20
+
21
+ The husband kept on visiting his wife in secret for some time after the marriage. Only Spartans did these customs. Some people think that the cutting off of the wife's hair was a ceremony that showed she was going into a new life.[9]
22
+
23
+ Sparta conquered the people of Messenia and Lakonia (the surrounding countryside) at around 680–560 BC. These people became known as the helots. They were not slaves: they were serfs. They had a lower position in society, like serfs in mediaeval Europe.[7]
24
+
25
+ Helots spent their lives farming their Spartan masters kleros (land granted to Spartan citizens). The Spartan poet Tyrtaios says helots were allowed to marry and keep half the fruits of their labor.[10] At most times, the helots outnumbered their Spartan masters 10 to 1. They rebelled often, but they were never able to overthrow their oppressors.
26
+
27
+ Once a Spartan reached the age of 20, he or she would then become a homoios. A homoios was a member of the ruling class (a citizen). Both men and women were citizens. Sparta was an unusual society for women's rights, because women were considered to be equal.
28
+
29
+ The Spartan army used the phalanx formation. This contributed to the many battles Sparta won. Their most famous loss is the Battle of Thermopylae where 300 Spartans held off a large Persian army for a week.
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1
+ Sparta is a city in Greece. It is the capital of the Laconia prefecture. It is in the south of Peloponnese peninsula. During antiquity, it was extremely powerful. Today, it is a small city. 16,726 people lived there according to the 2001 census. The word Spartan is used to describe somebody who lives a simple life or somebody who suffered a lot without crying or showing that they suffered.[1] It can also mean a life of simplicity, without anything fancy or costly.[2]
2
+
3
+ Sparta is in the mountainous region of Laconia.[3]:225 This is in the south-east of the Peloponnese. Ancient Sparta was built on the banks of the Evrotas River.[3]:225 The river flows through a valley with mountains on each side. To the west is the Taygetus Range (highest point 2407 m) and to the east is the Parnon Range (highest point 1935 m). Because the ancient Spartans had such good natural defenses, they did not need city walls.[3]:225
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+ In Ancient Greece Sparta was a city-state with a very strong army and a government that was well led. Sparta was known as one of the strongest city-states in Greece. Only the strongest survived in Sparta, male or female. The Spartans killed weak children. If they believed that a baby was too weak, they left it out to die of exposure beside a slope on Mount Taygetus.[3]:240 This place was called the Apothetae, which meant 'the place of rejection'.[3]:240
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+ Sparta had a government with checks and balances. The executive branch was led by two kings. The legislative branch was led by the citizens. and the judicial branch was controlled by the elders. There was also a committee of five men who were in charge of the education process that young boys and girls went through. Boys and girls were taken from their parents at the age of 7. Boys went to live in barracks with other boys their age. Girls went to school to learn gymnastics, wrestling, and other activities.
8
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+ Laconophilia is love or liking of Sparta and of the Spartan culture. Sparta was often admired when it ruled. Long ago, "Many of the noblest and best of the Athenians always considered (thought) the Spartan state nearly as an ideal theory realised in practice".[4] Many Greek philosophers, especially Platonists, would often describe Sparta as a good state, strong, brave, and free.
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+ Sparta was also seen as a model of social purity by Revolutionary and Napoleonic France.[5]
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+ Adolf Hitler thought Sparta was very good. He said in 1928 that Germany should be like them by making smaller "the number allowed to live". The Spartans had created "the first racialist state".[6]
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+ Young Spartans boys were taken from their homes at the age of seven to begin a military life. The Spartans became soldiers at age 20, citizens at age 30, and retired at age 60. Men trained hard to become warriors of the Spartan army. Women were encouraged to keep healthy so that they could produce healthy, fit babies to grow up to be strong. Spartans saw little moral value in the concept of childbirth; unless the child was fit to become a Spartan, he would die.
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+ Spartan men married when they were 30 years old.[7] Plutarch writes of the strange custom of the Spartans for their wedding night:
18
+
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+ The custom was to capture women for marriage...The...'bridesmaid' took charge of the captured girl. She first shaved her head...then dressed her in a man's cloak and sandals, and laid her down alone on a mattress in the dark. The bridegroom...first had dinner...then would slip in...lift her and carry her to the bed.[8]
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+ The husband kept on visiting his wife in secret for some time after the marriage. Only Spartans did these customs. Some people think that the cutting off of the wife's hair was a ceremony that showed she was going into a new life.[9]
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+ Sparta conquered the people of Messenia and Lakonia (the surrounding countryside) at around 680–560 BC. These people became known as the helots. They were not slaves: they were serfs. They had a lower position in society, like serfs in mediaeval Europe.[7]
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+ Helots spent their lives farming their Spartan masters kleros (land granted to Spartan citizens). The Spartan poet Tyrtaios says helots were allowed to marry and keep half the fruits of their labor.[10] At most times, the helots outnumbered their Spartan masters 10 to 1. They rebelled often, but they were never able to overthrow their oppressors.
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+ Once a Spartan reached the age of 20, he or she would then become a homoios. A homoios was a member of the ruling class (a citizen). Both men and women were citizens. Sparta was an unusual society for women's rights, because women were considered to be equal.
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+ The Spartan army used the phalanx formation. This contributed to the many battles Sparta won. Their most famous loss is the Battle of Thermopylae where 300 Spartans held off a large Persian army for a week.
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1
+ An astronaut or cosmonaut is a person who goes into outer space. The Soviet Union and countries that it was friends with used the word cosmonaut. Western countries including the United States said astronaut. Astronauts are also called "taikonauts" in China or "spationaute" in France.
2
+
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+ The first person to go into space was a Russian from the Soviet Union. His name was Yuri Gagarin. This happened on April 12, 1961. The first and second people to walk on the Moon were the Americans Neil Armstrong and Buzz Aldrin. This happened on July 20, 1969. No astronauts have gone to the moon since 1972. No people have visited any other planets yet.
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+ Astronauts used to go into space using many different ways, but now they only go on the Soyuz and Shenzhou. Several countries have worked together to build an International Space Station where people stay and work in space for long periods of time.
6
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+ A few countries and companies are trying to make more ways to get people into space. The United States is building a very big rocket called the Space Launch System. Some American companies, for example Boeing, Lockheed Martin, and SpaceX, are being paid by the United States to make ways for people to go to space.
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1
+ Cube); 1980 (as Rubik's
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+ Cube, worldwide)–present
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+ Rubik's Cube is a puzzle cube, and the world's biggest selling toy of all time with over 300,000,000 (300 million) sold. It was invented in 1974 by Hungarian sculptor and professor of architecture Ernő Rubik. In a classic Rubik's Cube, each of the six faces is covered by nine stickers, each of one of six solid colours: white, red, blue, orange, green, and yellow. In currently sold models, white is opposite yellow, blue is opposite green, orange is opposite red, and some might replace blue with black or purple.
6
+
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+ The standard Rubik's Cube is 3x3x3. 3 blocks across, 3 blocks down, and 3 blocks deep. Cubes can be made in 2x2, 4x4, or larger versions. As of 2017[update] the largest cube is 33 x 33, which is also 3d printed.[1]
8
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+ Cuboids are cubes with uneven sides. Some options are the 3x2x2 or 3x5 or 4x3. Some cuboids can shapeshift or jumble. That means the cube goes out of its original shape. To solve a shapeshifting cube it must return to the original shape before it is considered solved.
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+ Gear cubes include gears which cause both sides of a cube to turn.
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+ Other versions include the Megaminx, Pyraminx, Rubik's clock, Mirror Cube, and Square 1.
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+
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+ A Rubik's Cube is a cube split into a number of smaller cubes with different colored faces attached to a rotating piece of metal in the middle. Total, there are 26 small cubes. The Rubik's Cube have six sides with 9 little cubes attached to it and each side has one color: red, yellow, blue, orange, white and green are the most common colors.
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+
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+ The cubes can be rotated and twisted along rows and faces. The aim of the puzzle is to make each face of the cube have the same color. Solving a Rubik's Cube requires logic and thinking. There are many different ways to learn how to solve a Rubik's cube.
18
+
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+ There are many methods that people use to solve a Rubik's Cube. Today the most common one is called CFOP, also called Fridrich Method, named after the popularizer Jessica Fridrich. In this method first the white cross is solved, then F2L(First 2 Layers) followed by OLL(Orientation of Last Layer) and PLL(Permutation Of Last Layer). Other methods include Petrus, ZZ, Roux, Keyhole and others.
20
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+ The record for one Rubik's Cube solve is 3.47 seconds by Yusheng Du at the Wuhu Open 2018 (in China).[2] Feliks Zemdegs holds the record for the average of 5, which is 5.53 seconds, set at Odd Day in Sydney 2019.
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+ Wikipedia does not yet have an article with this name.
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1
+ Wikipedia does not yet have an article with this name.
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+ Wikipedia does not yet have an article with this name.
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1
+ Semen (pronounced SEE-men or SEE-mən) is the fluid that comes out from the end of a man's penis when he has an orgasm (the height of sexual excitement) and ejaculates. It is usually a white or yellowish, sticky substance made up of sperm (male cells for sexual reproduction) floating in a fluid called seminal plasma that has water and different chemicals in it. Normally, an ejaculation makes between 1.5 and 5 millilitres (up to one teaspoonful) of semen.
2
+
3
+ Some scientists think that semen that is taken into a woman's body causes her not to feel depressed or sad. On the other hand, if semen touches another person's body, it can pass on sexually transmitted infections (STIs). In a few cases, it can also make the other person's immune system weaker, or cause the person to have an allergic reaction. The risks of these health problems happening can be reduced if the man wears a condom when having sex.
4
+
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+ Many cultures around the world once thought or still think that semen has special or even magical qualities. Showing semen in forms of popular culture such as art and movies has for a long time been taboo, that is, not generally accepted by society. However, since the late 20th century, artists and moviemakers have done so more often.
6
+
7
+ The English word semen comes from the Latin word sēmen, which means "seed".[1] In fact, seed was an old-fashioned name for semen.[2] The Latin word sēmen itself came from another Latin word, serěre, which means "to plant (a plant into the ground) or to sow (seeds in the earth)".[1] It was once thought that semen was like a seed that grew into a baby after being "planted" inside a woman's body.
8
+
9
+ Another name for semen is ejaculate. Some slang words for semen are cream, cum, jism, jizz, jazz load, spooge, spunk, nut, or wad.[original research?]
10
+
11
+ Semen is the fluid that comes out from the end of a man's penis when he has an orgasm (the height of sexual excitement) and ejaculates. It is usually white, but may also be slightly grey or yellow.[3] If there is blood in the semen, it can look pink or reddish. This is a condition called hematospermia, and may be because of some blockage, inflammation, infection or injury to some part of the male sex organs, such as the urethra, epididymis, prostate or testicles. A doctor should be seen if the pink or reddish colour does not go away after a few days.[4]
12
+
13
+ Men ejaculate different amounts of semen. Normally, an ejaculation makes between 1.5 and 5 millilitres (up to one teaspoonful) of semen.[5] More semen usually comes out if a man has not ejaculated for many days, or if he has been stimulated (made sexually excited) for a long time. Older men make less semen. If a man ejaculates an unusually small amount of semen, this is a medical condition called hypospermia.
14
+
15
+ After a man has ejaculated, semen first becomes slightly thick and sticky, and may feel a bit like jelly and clump together in globs. Scientists think that semen does this so that if the man has had sex with a woman and has ejaculated inside her vagina, the semen stays in her vagina for longer and does not leak out. Between five and 40 minutes after this, semen becomes more liquid and watery. This probably allows the sperm in the semen to move through the vagina and into the woman's uterus and Fallopian tubes to try and fertilize an ovum (egg cell). If semen is ejaculated outside the body, after becoming watery it eventually dries up.[3]
16
+
17
+ Semen is made up of sperm (male cells for sexual reproduction) floating in a fluid called seminal plasma. Sperm, also called spermatozoa, are made by a man's testicles and mature (grow up) in the epididymis. The fluids in seminal plasma come from different glands in the man's body: the seminal vesicles, prostate and bulbourethral glands (also called the Cowper's glands). (Glands are special organs in the body that make chemicals.) The table below shows the substances that make up semen and the glands that produce them:[3]
18
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+ Seminal plasma protects and provides food for sperm as they travel inside a woman's body. The inside of a woman'a vagina does not suit sperm cells as it is acidic. To protect the sperm from the acid, seminal plasma is alkaline. A woman's immune system also tries to kill organisms (living things) that are not part of her body. Seminal plasma has chemicals called prostaglandins in it to stop the woman's body from killing the sperm.
20
+
21
+ Semen that does not have any germs in it (see below) is not harmful if it is swallowed, for example after a person has had oral sex with a man and the man ejaculates in that person's mouth.
22
+
23
+ Semen quality refers to how well the sperm in a man's semen can fertilize a woman's ova. The better a man's semen quality is, the better chances he has to make a woman pregnant. A 1992 World Health Organization book said that an ejaculation of normal human semen has:[6]
24
+
25
+ The number of sperm in an ejaculation of semen depends on many things. There may be more sperm if:
26
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27
+ If there are an unusually low number of sperm in an ejaculation, this is called oligospermia. If there are no sperm at all, this is called azoospermia. A man with oligospermia or azoospermia is usually infertile, and cannot or finds it very hard to make a woman pregnant by having sex with her.
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+ If the semen does not have infections, it is okay to swallow semen. A woman cannot get pregnant from swallowing semen in her mouth. It is okay if a man swallows his own semen. Two doctors say it is good if a woman swallows semen often. They say women get breast cancer less if they swallow semen.[7] The doctors don't know why. Other doctors must do more tests.
30
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31
+ Studies seem to say that semen is an anti-depressant. This means that it causes women not to feel depressed or sad. The studies found that when men had sex with women without using condoms, and the men's semen was taken into the women's vaginas, the women had better moods and felt happier. Scientists do not yet know if the same thing happens when semen is swallowed after oral sex, but some of them think it may.[8]
32
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33
+ If a man has a sexually transmitted infection or STI (an infection that is passed from one person to another by sex), the germs that cause the disease can appear in his semen. If the person that the man has sex with touches the semen, he or she can become infected by the germs and pick up the disease. HIV, chlamydia, gonorrhea, hepatitis B, herpes and syphillis are examples of STIs. One of the ways for a man to lower the chance of passing on an STI to his sexual partner is to wear a condom on his penis when having sex. Getting semen in the mouth can be bad if the penis or semen has infections.
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+ If semen gets in the eye, the eye will hurt. Wash the eye with warm water. Wash the eye for a few minutes. Some doctors say to get tested for infections.[9]
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+ Some scientists think that parts of semen, such as sperm and seminal plasma, can make another person's immune system weaker. Experiments show that when substances in a man's semen enter another person's body, that person's body makes antibodies. Antibodies are large Y-shaped proteins used by the body's immune system to stop foreign objects from harming the body. However, the antibodies made in response to substances in semen attack one of the body's own cells, called T lymphocytes.[10] This weakens the body's immune system.
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39
+ In a very small number of cases, people have experienced allergic reactions when they touched semen. This is called human seminal plasma hypersensitivity. The symptoms (signs of the medical problem) can either be near the part of the body which touched the semen, or all over the body. They may include itching of the vagina, redness, swelling or blisters within 30 minutes of contact. They may also include itching and hives (large, red, itchy patches) all over the body, and even difficulty breathing.[11]
40
+
41
+ The best way to test for human seminal plasma hypersensitivity is for a man to use a condom when having sex. When a condom is used, after ejaculation the man's semen stays inside the condom and does not touch the body of the person he is having sex with. If the man's sexual partner usually has allergic symptoms to semen but does not have any when a condom is used, this may show that his partner's body is extra-sensitive to semen. A person can often get over a mild semen allergy by coming into contact with semen often.[12] If the allergic reaction is very bad, the person should see a doctor, especially if she is a woman trying to get pregnant. In such cases, it may be necessary for the woman to have a baby through artificial insemination. This is a medical way of fertilizing a woman's ova using a man's sperm without the man and the woman having sexual intercourse.
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+
43
+ Many cultures around the world once thought or still think that semen has special or even magical qualities. Some examples are set out below:
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+
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+ Displaying semen in forms of popular culture such as art and movies has for a long time been taboo, that is, not generally accepted by society. However, since the late 20th century artists and moviemakers have done so more often.
46
+
47
+ The American photographer Andres Serrano sometimes takes photographs of body fluids and displays them as artworks. One example is Blood and Semen II (1990), which is a picture of blood and semen mixed together. Some people are shocked by such pictures and think it is wrong of him to make them, while others think that as an artist he is free to create such works.[19] Another of Serrano's pictures, Blood and Semen III, was featured on the cover of the 1996 music album Load by the American heavy metal band Metallica.[20]
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+ The United Kingdom-based artists Gilbert Proesch and George Passmore, better known as Gilbert and George, have also used semen and other body fluids to create artworks.[21]
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+ Apart from pornographic movies showing people having sex, semen is usually not shown in movies as many people think that doing so is obscene (not decent). However, some movies that have shown semen are the American comedy movies There's Something about Mary (1998),[22] American Pie (1999),[23] Scary Movie (2000)[24] and Scary Movie 2 (2001).[25] In the Spanish movie Y tu mamá también (And Your Mother Too, 2001), there is a scene where two high-school boys who are friends lie on diving boards over a swimming pool and masturbate (make themselves sexually excited). Semen is later shown floating on the water.[26] Such movies are usually not thought to be suitable for children to watch.
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1
+ A bank is a financial institution where customers can save or borrow money. Banks also invest money to build up their reserve of money. What they do is regulated by laws. Those laws differ in different countries. The people who work at a bank are called bank employees. Certain banks deal directly with the public and they are the only ones which an ordinary person will deal with. Other banks deal with investments and international currency trading.
2
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+ Customer's money may be placed in the bank for safe keeping. Banks may give loans to customers under an agreement to pay the money back to the bank at a later time, with interest. An example is getting a mortgage to buy a house or apartment. Banks also can use the money they have from deposit accounts to invest in businesses in order to make more money.
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+ In most countries the rules for banks are made by the government acting through laws. A central bank (such as the Bank of England) adjusts how much money is issued at a particular time. This is a factor in the economy of a country, and the government takes the big decisions. These "banks of issue" take in, and issue out, coins and banknotes.
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+ The word bank comes from an Italian word banco, meaning a bench, since Italian merchants in the Renaissance made deals to borrow and lend money beside a bench. They placed the money on that bench.
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+ Elementary financial records are known from the beginning of history.[1] Baked clay records were done before the invention of writing.[2]
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+ In the 17th century, merchants started storing their gold with goldsmiths in London. The goldsmiths had their own vaults, and charged a fee for storing the merchants' gold. The goldsmiths eventually started loaning money using the gold left to them, and also paid interest on the gold.
12
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+ The Bank of England began issuing banknotes in 1695. The oldest bank still in existence is Monte dei Paschi di Siena in Siena, Italy, which started in 1472.
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+ A bank usually provides the following services:
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1
+ A sphere is a shape in space that is like the surface of a ball. Most of the time, the terms ball and sphere are used as the same. But in mathematics, the precise (exact) definition only allows points in the 3 dimensional space which are uniformly and symmetrically located at a fixed length called radius of the sphere.
2
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+ Examples of these are basketballs, superballs, and playground balls.
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+ A sphere is the 3 dimensional analogue of a circle.
6
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+ The volume (V) of a sphere is given by the following formula
8
+
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+ where r is the radius of the sphere.
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+
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+ The surface area (A) of a sphere is given by the following formula
12
+
13
+ where r is the radius of the sphere.
14
+
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+ In Cartesian co-ordinates, the equation for a sphere with a center at (x0, y0, z0) is as follows:
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+ (
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+ x
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+ x
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+
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+ 0
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+
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+ )
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+ 2
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+
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+ +
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+ (
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+ y
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+
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+
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+ y
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+
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+ 0
40
+
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+
42
+
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+ )
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+
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+ 2
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+
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+
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+ +
49
+ (
50
+ z
51
+
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+
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+ z
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+
55
+ 0
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+
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+ )
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+ 2
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64
+ =
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+ r
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+ 2
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+ {\displaystyle (x-x_{0})^{2}+(y-y_{0})^{2}+(z-z_{0})^{2}=r^{2}}
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+ where r is the radius of the sphere.
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1
+ Spider-Man is a fictional superhero in the Marvel Comics universe. He is a character created by writer Stan "the man" Lee and artist Steve Ditko. He first appeared in Amazing Fantasy #15 in August 1962. The premise was that he was an orphan being raised by his Aunt May and Uncle Ben as an ordinary teenager. He would deal with the normal struggles of being young as well as the struggles of being of a costumed crime fighter. His powers were super strength, agility, the ability to cling to almost every surface, the ability to shoot spider-webs using a device that he invented which he calls "web-shooters," and reacting to danger quickly with his "spider-sense", enabling him to combat many foes similar to that of a spider.
2
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+ Spider-Man first appeared in the early 1960s, when teenagers in superhero comic books were usually relegated to the role of sidekick to the protagonist. The series featured Peter Parker, a high school student who frequently suffered the same rejection, inadequacy, and loneliness, that most young readers could easily relate to.[1]:210 Unlike some teen heroes, such as Bucky and Robin, Spider-Man never had any adult mentors like Captain America and Batman to teach him to be a superhero. He had to learn for himself that "with great power comes great responsibility" — a quote that he would cherish from his late Uncle Ben.
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+ Marvel has featured Spider-Man in several comic book series such as The Amazing Spider-Man, Spectacular Spider-Man and Sensational Spider-Man over the years. Peter Parker has developed from shy high school student to troubled but outgoing college student to married high school teacher. But his most associated adult role is that of being a single freelance photographer. He has also been a member of both the New Avengers, and the Fantastic Four. Spider-Man has had a lot of nicknames over the years such as being referred to as "Spidey," "web-slinger," "wall-crawler," or "web-head." He is also called "arachnid" by some villains and calls himself "Your Friendly Neighborhood Spider-Man."
6
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+ Spider-Man has been one of the most popular and commercially successful superheroes. Often considered to be Marvel's flagship character and company mascot, he has appeared in many forms of media such as animation and movies and he has been played by actors such as Tobey Maguire, Andrew Garfield, Tom Holland, among others. Spider-Man (2002), Spider-Man 2, Spider-Man 3, The Amazing Spider-Man, The Amazing Spider-Man 2, Spider-Man: Homecoming, and Spider-Man: Far from Home.
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+ The first time that Spider-Man (who is also known as) Peter Parker appeared was in the Amazing Fantasy #15 comic book in August 1962. Because of its success, a new comic book series began called The Amazing Spider-Man. Others were created including Spectacular Spider-Man, Sensational Spider-Man and Ultimate Spider-Man.
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+ Spider-Man wears a red and blue super suit. This has a webbing design on the red parts of the suit which are the mask, torso, boots and gloves. The leggings and sleeves are blue.
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+ In Peter Parker's first appearance, he is introduced as an orphaned science whiz teenager living with his aunt and uncle in the Forest Hills section of New York City. He is a brilliant student but also gets picked on by his peers who accuse him of being a bookworm, and constantly gets bullied by Eugene "Flash" Thompson, who calls him "Puny Parker" and humiliates him daily. One day, he is bitten by a radioactive spider which then gives him his powers that turn him to Spider-Man.
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+ As Spider-Man, he then becomes a successful TV star. The career then goes to his head that one day at a studio he refuses to stop a thief, saying that it is the job of the police, not that of a star. He then returns home to learn that his beloved Uncle Ben, has been murdered and as Spider-Man he angrily sets off to capture the killer. When he does, he is horrified to find that the man is none other than the Burglar he refused to subdue. Learning that with great power comes great responsibility, Spider-Man becomes a vigilante. After his uncle died, Peter and his aunt become desperate for money, so he gets a job as a photographer at the Daily Bugle selling photos to J. Jonah Jameson, who seems to be jealous of Spider-Man and makes Spider-Man look bad in the paper. As he battles many enemies for his first time, Parker finds it difficult juggling both his personal life and costumed adventures at the same time. In time, he would then graduate from high school, and enroll at Empire State University, where he meets roommate and best friend Harry Osborn and his second girlfriend (having been romantically involved with Betty Brant before) Gwen Stacy, Peter also discovers his best friend Harry has a drug problem and that Harry's father is revealed to be one of Spider-Man's nemeses the Green Goblin, Peter then attempts to give up his costumed identity. In the course of his adventures though Spider-Man has made quite a few of friends and contacts within the superhero community, who often come to his aid when he faces problems that he cannot solve on his own.
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+
17
+ His loved ones are frequently endangered by enemies including a Spider-Man costume which turns out to be an alien symbiote. After noticing the symbiote's true nature Peter then rejects the symbiote after a difficult struggle. In a controversial storyline, Peter becomes convinced that Ben Reilly, the Scarlet Spider who is actually a clone of Peter created by his college professor Miles Warren is the real Peter Parker, and that he, Peter, is actually the clone. Peter gives up the Spider-Man identity to Reilly for a while until Reilly is killed by the returning Green Goblin and revealed to be the clone after all. He for a little bit develops additional spider-like abilities including biological web-shooters, toxic stingers that extend from his forearms, the ability to stick individuals to his back, enhanced Spider-sense and night vision, and increased strength and speed. He even becomes a member of the New Avengers, and reveals his civilian identity to the world, which causes more problems such as Aunt May being shot. Due to his Aunt May almost dying, his marriage to Mary Jane and public unmasking are later erased due to a deal made with the demon Mephisto, resulting in several adjustments to the time line, such as the resurrection of Harry Osborn and Spider-Man original powers. After months of just Peter knowing Spider-Man's identity he then unmasks himself to the New Avengers and the Fantastic Four.
18
+
19
+ Spider-Man is one of the most well known superheroes ever created. He is normally considered to Marvel Comics' flagship character. His quote With great power comes great responsibility is one of the most popular superhero quotes ever used. He has also been adopted in other media such as television and video games and most popularly Sam Raimi's film trilogy which includes Spider-Man, Spider-Man 2, and Spider-Man 3. The Amazing Spider-Man movies are also popular.
20
+
21
+ Spider-Man has appeared on television numerous times, in both live-action and animated television programs. In animation he has appeared in a 1967 television series named after him, he also appeared in "Spidey Super Stories" on The Electric Company, he appeared as an guest star in a Spider-Woman animated series. There was also a 1981 animated series of him and then an animated series called Spider-Man and his Amazing Friends soon after. And then in the Marvel Animation Age in 1994 there was another series about him and there was a spin off of it called Spider-Man Unlimited. After the Sam Raimi movies there was an animated series of Spider-Man in MTV called Spider-Man: The New Animated Series and in 2008 there is an animated series called The Spectacular Spider-Man. It is also said that he will appear in The Super Hero Squad Show. In live action there is Amazing Spider-Man and an tokatsu series of Spider-Man in Japan.
22
+
23
+ Supporting characters in the Spider-Man series include:
24
+
25
+ Villains in the Spider man series include:
ensimple/5482.html.txt ADDED
@@ -0,0 +1,25 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Spider-Man is a fictional superhero in the Marvel Comics universe. He is a character created by writer Stan "the man" Lee and artist Steve Ditko. He first appeared in Amazing Fantasy #15 in August 1962. The premise was that he was an orphan being raised by his Aunt May and Uncle Ben as an ordinary teenager. He would deal with the normal struggles of being young as well as the struggles of being of a costumed crime fighter. His powers were super strength, agility, the ability to cling to almost every surface, the ability to shoot spider-webs using a device that he invented which he calls "web-shooters," and reacting to danger quickly with his "spider-sense", enabling him to combat many foes similar to that of a spider.
2
+
3
+ Spider-Man first appeared in the early 1960s, when teenagers in superhero comic books were usually relegated to the role of sidekick to the protagonist. The series featured Peter Parker, a high school student who frequently suffered the same rejection, inadequacy, and loneliness, that most young readers could easily relate to.[1]:210 Unlike some teen heroes, such as Bucky and Robin, Spider-Man never had any adult mentors like Captain America and Batman to teach him to be a superhero. He had to learn for himself that "with great power comes great responsibility" — a quote that he would cherish from his late Uncle Ben.
4
+
5
+ Marvel has featured Spider-Man in several comic book series such as The Amazing Spider-Man, Spectacular Spider-Man and Sensational Spider-Man over the years. Peter Parker has developed from shy high school student to troubled but outgoing college student to married high school teacher. But his most associated adult role is that of being a single freelance photographer. He has also been a member of both the New Avengers, and the Fantastic Four. Spider-Man has had a lot of nicknames over the years such as being referred to as "Spidey," "web-slinger," "wall-crawler," or "web-head." He is also called "arachnid" by some villains and calls himself "Your Friendly Neighborhood Spider-Man."
6
+
7
+ Spider-Man has been one of the most popular and commercially successful superheroes. Often considered to be Marvel's flagship character and company mascot, he has appeared in many forms of media such as animation and movies and he has been played by actors such as Tobey Maguire, Andrew Garfield, Tom Holland, among others. Spider-Man (2002), Spider-Man 2, Spider-Man 3, The Amazing Spider-Man, The Amazing Spider-Man 2, Spider-Man: Homecoming, and Spider-Man: Far from Home.
8
+
9
+ The first time that Spider-Man (who is also known as) Peter Parker appeared was in the Amazing Fantasy #15 comic book in August 1962. Because of its success, a new comic book series began called The Amazing Spider-Man. Others were created including Spectacular Spider-Man, Sensational Spider-Man and Ultimate Spider-Man.
10
+
11
+ Spider-Man wears a red and blue super suit. This has a webbing design on the red parts of the suit which are the mask, torso, boots and gloves. The leggings and sleeves are blue.
12
+
13
+ In Peter Parker's first appearance, he is introduced as an orphaned science whiz teenager living with his aunt and uncle in the Forest Hills section of New York City. He is a brilliant student but also gets picked on by his peers who accuse him of being a bookworm, and constantly gets bullied by Eugene "Flash" Thompson, who calls him "Puny Parker" and humiliates him daily. One day, he is bitten by a radioactive spider which then gives him his powers that turn him to Spider-Man.
14
+
15
+ As Spider-Man, he then becomes a successful TV star. The career then goes to his head that one day at a studio he refuses to stop a thief, saying that it is the job of the police, not that of a star. He then returns home to learn that his beloved Uncle Ben, has been murdered and as Spider-Man he angrily sets off to capture the killer. When he does, he is horrified to find that the man is none other than the Burglar he refused to subdue. Learning that with great power comes great responsibility, Spider-Man becomes a vigilante. After his uncle died, Peter and his aunt become desperate for money, so he gets a job as a photographer at the Daily Bugle selling photos to J. Jonah Jameson, who seems to be jealous of Spider-Man and makes Spider-Man look bad in the paper. As he battles many enemies for his first time, Parker finds it difficult juggling both his personal life and costumed adventures at the same time. In time, he would then graduate from high school, and enroll at Empire State University, where he meets roommate and best friend Harry Osborn and his second girlfriend (having been romantically involved with Betty Brant before) Gwen Stacy, Peter also discovers his best friend Harry has a drug problem and that Harry's father is revealed to be one of Spider-Man's nemeses the Green Goblin, Peter then attempts to give up his costumed identity. In the course of his adventures though Spider-Man has made quite a few of friends and contacts within the superhero community, who often come to his aid when he faces problems that he cannot solve on his own.
16
+
17
+ His loved ones are frequently endangered by enemies including a Spider-Man costume which turns out to be an alien symbiote. After noticing the symbiote's true nature Peter then rejects the symbiote after a difficult struggle. In a controversial storyline, Peter becomes convinced that Ben Reilly, the Scarlet Spider who is actually a clone of Peter created by his college professor Miles Warren is the real Peter Parker, and that he, Peter, is actually the clone. Peter gives up the Spider-Man identity to Reilly for a while until Reilly is killed by the returning Green Goblin and revealed to be the clone after all. He for a little bit develops additional spider-like abilities including biological web-shooters, toxic stingers that extend from his forearms, the ability to stick individuals to his back, enhanced Spider-sense and night vision, and increased strength and speed. He even becomes a member of the New Avengers, and reveals his civilian identity to the world, which causes more problems such as Aunt May being shot. Due to his Aunt May almost dying, his marriage to Mary Jane and public unmasking are later erased due to a deal made with the demon Mephisto, resulting in several adjustments to the time line, such as the resurrection of Harry Osborn and Spider-Man original powers. After months of just Peter knowing Spider-Man's identity he then unmasks himself to the New Avengers and the Fantastic Four.
18
+
19
+ Spider-Man is one of the most well known superheroes ever created. He is normally considered to Marvel Comics' flagship character. His quote With great power comes great responsibility is one of the most popular superhero quotes ever used. He has also been adopted in other media such as television and video games and most popularly Sam Raimi's film trilogy which includes Spider-Man, Spider-Man 2, and Spider-Man 3. The Amazing Spider-Man movies are also popular.
20
+
21
+ Spider-Man has appeared on television numerous times, in both live-action and animated television programs. In animation he has appeared in a 1967 television series named after him, he also appeared in "Spidey Super Stories" on The Electric Company, he appeared as an guest star in a Spider-Woman animated series. There was also a 1981 animated series of him and then an animated series called Spider-Man and his Amazing Friends soon after. And then in the Marvel Animation Age in 1994 there was another series about him and there was a spin off of it called Spider-Man Unlimited. After the Sam Raimi movies there was an animated series of Spider-Man in MTV called Spider-Man: The New Animated Series and in 2008 there is an animated series called The Spectacular Spider-Man. It is also said that he will appear in The Super Hero Squad Show. In live action there is Amazing Spider-Man and an tokatsu series of Spider-Man in Japan.
22
+
23
+ Supporting characters in the Spider-Man series include:
24
+
25
+ Villains in the Spider man series include:
ensimple/5483.html.txt ADDED
@@ -0,0 +1,25 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ Spider-Man is a fictional superhero in the Marvel Comics universe. He is a character created by writer Stan "the man" Lee and artist Steve Ditko. He first appeared in Amazing Fantasy #15 in August 1962. The premise was that he was an orphan being raised by his Aunt May and Uncle Ben as an ordinary teenager. He would deal with the normal struggles of being young as well as the struggles of being of a costumed crime fighter. His powers were super strength, agility, the ability to cling to almost every surface, the ability to shoot spider-webs using a device that he invented which he calls "web-shooters," and reacting to danger quickly with his "spider-sense", enabling him to combat many foes similar to that of a spider.
2
+
3
+ Spider-Man first appeared in the early 1960s, when teenagers in superhero comic books were usually relegated to the role of sidekick to the protagonist. The series featured Peter Parker, a high school student who frequently suffered the same rejection, inadequacy, and loneliness, that most young readers could easily relate to.[1]:210 Unlike some teen heroes, such as Bucky and Robin, Spider-Man never had any adult mentors like Captain America and Batman to teach him to be a superhero. He had to learn for himself that "with great power comes great responsibility" — a quote that he would cherish from his late Uncle Ben.
4
+
5
+ Marvel has featured Spider-Man in several comic book series such as The Amazing Spider-Man, Spectacular Spider-Man and Sensational Spider-Man over the years. Peter Parker has developed from shy high school student to troubled but outgoing college student to married high school teacher. But his most associated adult role is that of being a single freelance photographer. He has also been a member of both the New Avengers, and the Fantastic Four. Spider-Man has had a lot of nicknames over the years such as being referred to as "Spidey," "web-slinger," "wall-crawler," or "web-head." He is also called "arachnid" by some villains and calls himself "Your Friendly Neighborhood Spider-Man."
6
+
7
+ Spider-Man has been one of the most popular and commercially successful superheroes. Often considered to be Marvel's flagship character and company mascot, he has appeared in many forms of media such as animation and movies and he has been played by actors such as Tobey Maguire, Andrew Garfield, Tom Holland, among others. Spider-Man (2002), Spider-Man 2, Spider-Man 3, The Amazing Spider-Man, The Amazing Spider-Man 2, Spider-Man: Homecoming, and Spider-Man: Far from Home.
8
+
9
+ The first time that Spider-Man (who is also known as) Peter Parker appeared was in the Amazing Fantasy #15 comic book in August 1962. Because of its success, a new comic book series began called The Amazing Spider-Man. Others were created including Spectacular Spider-Man, Sensational Spider-Man and Ultimate Spider-Man.
10
+
11
+ Spider-Man wears a red and blue super suit. This has a webbing design on the red parts of the suit which are the mask, torso, boots and gloves. The leggings and sleeves are blue.
12
+
13
+ In Peter Parker's first appearance, he is introduced as an orphaned science whiz teenager living with his aunt and uncle in the Forest Hills section of New York City. He is a brilliant student but also gets picked on by his peers who accuse him of being a bookworm, and constantly gets bullied by Eugene "Flash" Thompson, who calls him "Puny Parker" and humiliates him daily. One day, he is bitten by a radioactive spider which then gives him his powers that turn him to Spider-Man.
14
+
15
+ As Spider-Man, he then becomes a successful TV star. The career then goes to his head that one day at a studio he refuses to stop a thief, saying that it is the job of the police, not that of a star. He then returns home to learn that his beloved Uncle Ben, has been murdered and as Spider-Man he angrily sets off to capture the killer. When he does, he is horrified to find that the man is none other than the Burglar he refused to subdue. Learning that with great power comes great responsibility, Spider-Man becomes a vigilante. After his uncle died, Peter and his aunt become desperate for money, so he gets a job as a photographer at the Daily Bugle selling photos to J. Jonah Jameson, who seems to be jealous of Spider-Man and makes Spider-Man look bad in the paper. As he battles many enemies for his first time, Parker finds it difficult juggling both his personal life and costumed adventures at the same time. In time, he would then graduate from high school, and enroll at Empire State University, where he meets roommate and best friend Harry Osborn and his second girlfriend (having been romantically involved with Betty Brant before) Gwen Stacy, Peter also discovers his best friend Harry has a drug problem and that Harry's father is revealed to be one of Spider-Man's nemeses the Green Goblin, Peter then attempts to give up his costumed identity. In the course of his adventures though Spider-Man has made quite a few of friends and contacts within the superhero community, who often come to his aid when he faces problems that he cannot solve on his own.
16
+
17
+ His loved ones are frequently endangered by enemies including a Spider-Man costume which turns out to be an alien symbiote. After noticing the symbiote's true nature Peter then rejects the symbiote after a difficult struggle. In a controversial storyline, Peter becomes convinced that Ben Reilly, the Scarlet Spider who is actually a clone of Peter created by his college professor Miles Warren is the real Peter Parker, and that he, Peter, is actually the clone. Peter gives up the Spider-Man identity to Reilly for a while until Reilly is killed by the returning Green Goblin and revealed to be the clone after all. He for a little bit develops additional spider-like abilities including biological web-shooters, toxic stingers that extend from his forearms, the ability to stick individuals to his back, enhanced Spider-sense and night vision, and increased strength and speed. He even becomes a member of the New Avengers, and reveals his civilian identity to the world, which causes more problems such as Aunt May being shot. Due to his Aunt May almost dying, his marriage to Mary Jane and public unmasking are later erased due to a deal made with the demon Mephisto, resulting in several adjustments to the time line, such as the resurrection of Harry Osborn and Spider-Man original powers. After months of just Peter knowing Spider-Man's identity he then unmasks himself to the New Avengers and the Fantastic Four.
18
+
19
+ Spider-Man is one of the most well known superheroes ever created. He is normally considered to Marvel Comics' flagship character. His quote With great power comes great responsibility is one of the most popular superhero quotes ever used. He has also been adopted in other media such as television and video games and most popularly Sam Raimi's film trilogy which includes Spider-Man, Spider-Man 2, and Spider-Man 3. The Amazing Spider-Man movies are also popular.
20
+
21
+ Spider-Man has appeared on television numerous times, in both live-action and animated television programs. In animation he has appeared in a 1967 television series named after him, he also appeared in "Spidey Super Stories" on The Electric Company, he appeared as an guest star in a Spider-Woman animated series. There was also a 1981 animated series of him and then an animated series called Spider-Man and his Amazing Friends soon after. And then in the Marvel Animation Age in 1994 there was another series about him and there was a spin off of it called Spider-Man Unlimited. After the Sam Raimi movies there was an animated series of Spider-Man in MTV called Spider-Man: The New Animated Series and in 2008 there is an animated series called The Spectacular Spider-Man. It is also said that he will appear in The Super Hero Squad Show. In live action there is Amazing Spider-Man and an tokatsu series of Spider-Man in Japan.
22
+
23
+ Supporting characters in the Spider-Man series include:
24
+
25
+ Villains in the Spider man series include:
ensimple/5484.html.txt ADDED
@@ -0,0 +1,15 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+
2
+
3
+ Spinosaurus (which means 'spiny lizard') was a huge semi-aquatic dinosaur from the Cretaceous, 112 to 93.5 million years ago.[1] It had paddle-like feet and nostrils on top of its crocodile-like head. This would let it submerge as a crocodile does.[2][3]
4
+
5
+ The same research suggests it was perhaps larger than Tyrannosaurus rex, but more clumsy on land, moving as a quadruped. All these ideas had been suggested before. The discovery of a more complete skeleton made palaeontologists think they were correct. The fossil was found in Morocco by a private collector who let scientists examine it.[4]
6
+
7
+ Spinosaurus bones were first discovered in Egypt in 1912 by German paleontologist Ernst Stromer in 1915. Two species, S. aegyptiacus and S. marocannus, are recognized by many paleontologists, but there may only be one. Spinosaurus looked like Baryonyx except it was larger and more heavily built. Six specimens of Spinosaurus have been uncovered. Apparently, good material was destroyed in Munich in a 1944 bombing raid.[1]
8
+
9
+ 100 million years ago, the Sahara Desert was wet. Animals included the pterosaur Alanqa, types of giant crocodiles, and theropod predators the size of T. rex. The largest predator was Spinosaurus. In the past, it was thought that Spinosaurus aegyptiacus was bipedal. In 2014, scientists believed that Spinosaurus aegyptiacus was quadrupedal because it is front-heavy. If Spinosaurus aegyptiacus were to walk on two legs, it would topple. Spinosaurus probably walked on its knuckles. Spinosaurus's legs were short. Spinosaurus's jaws were designed to catch slippery prey like fish. Scientists say that Spinosaurus spent most of its time in the water and it was a semi-aquatic dinosaur.
10
+
11
+ Spinosaurus was larger than Tyrannosaurus. Estimates published in 2005, 2007, and 2008 suggested that it was between 15 metres (50 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons) in weight. A new estimate published in 2014 and based on a more complete specimen, supported the earlier research, finding that Spinosaurus could reach lengths of over 15 m (49 ft). It had a two meter high sail on its back like Dimetrodon. Several uses have been suggested for this sail, such as to help control its body temperature, as a way to attract a mate, and to intimidate or frighten enemies. It lived in what is now the Sahara Desert, but which then was mangrove forests alongside shoreline conditions, tidal flats and channels.
12
+
13
+ The skull of Spinosaurus was long and narrow like that of a modern gharial. Spinosaurus is known to have eaten fish. Evidence suggests that it lived both on land and in water like a modern crocodilian.
14
+
15
+ It was featured as the main dinosaur in the 2001 film Jurassic Park III where it fights and kills a T-Rex. It has also appeared on postage stamps in several countries, and many toy companies have made models of Spinosaurus.
ensimple/5485.html.txt ADDED
@@ -0,0 +1,15 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+
2
+
3
+ Spinosaurus (which means 'spiny lizard') was a huge semi-aquatic dinosaur from the Cretaceous, 112 to 93.5 million years ago.[1] It had paddle-like feet and nostrils on top of its crocodile-like head. This would let it submerge as a crocodile does.[2][3]
4
+
5
+ The same research suggests it was perhaps larger than Tyrannosaurus rex, but more clumsy on land, moving as a quadruped. All these ideas had been suggested before. The discovery of a more complete skeleton made palaeontologists think they were correct. The fossil was found in Morocco by a private collector who let scientists examine it.[4]
6
+
7
+ Spinosaurus bones were first discovered in Egypt in 1912 by German paleontologist Ernst Stromer in 1915. Two species, S. aegyptiacus and S. marocannus, are recognized by many paleontologists, but there may only be one. Spinosaurus looked like Baryonyx except it was larger and more heavily built. Six specimens of Spinosaurus have been uncovered. Apparently, good material was destroyed in Munich in a 1944 bombing raid.[1]
8
+
9
+ 100 million years ago, the Sahara Desert was wet. Animals included the pterosaur Alanqa, types of giant crocodiles, and theropod predators the size of T. rex. The largest predator was Spinosaurus. In the past, it was thought that Spinosaurus aegyptiacus was bipedal. In 2014, scientists believed that Spinosaurus aegyptiacus was quadrupedal because it is front-heavy. If Spinosaurus aegyptiacus were to walk on two legs, it would topple. Spinosaurus probably walked on its knuckles. Spinosaurus's legs were short. Spinosaurus's jaws were designed to catch slippery prey like fish. Scientists say that Spinosaurus spent most of its time in the water and it was a semi-aquatic dinosaur.
10
+
11
+ Spinosaurus was larger than Tyrannosaurus. Estimates published in 2005, 2007, and 2008 suggested that it was between 15 metres (50 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons) in weight. A new estimate published in 2014 and based on a more complete specimen, supported the earlier research, finding that Spinosaurus could reach lengths of over 15 m (49 ft). It had a two meter high sail on its back like Dimetrodon. Several uses have been suggested for this sail, such as to help control its body temperature, as a way to attract a mate, and to intimidate or frighten enemies. It lived in what is now the Sahara Desert, but which then was mangrove forests alongside shoreline conditions, tidal flats and channels.
12
+
13
+ The skull of Spinosaurus was long and narrow like that of a modern gharial. Spinosaurus is known to have eaten fish. Evidence suggests that it lived both on land and in water like a modern crocodilian.
14
+
15
+ It was featured as the main dinosaur in the 2001 film Jurassic Park III where it fights and kills a T-Rex. It has also appeared on postage stamps in several countries, and many toy companies have made models of Spinosaurus.