If human DNA were completely unwound, it would be long enough to measure the distance from the Sun to Pluto, and then from Pluto to the Sun.

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An electric eel can generate up to 650 volts of electricity. If someone even touches it by mistake, it will be the biggest shock of his life.

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Three-fourths of the earth is water only. Hence when astronauts viewed Earth from space, they saw it mostly blue and it was named the 'Blue Planet'.

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Earth's surface is made up of tectonic plates that float on the rocky mantle between Earth's core and surface.

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For this reason earthquakes occur on the earth and volcanoes also erupt. That is, the whole earth is not made of one piece of land, but of many pieces!

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Moon has no atmosphere of its own. That's why there is no wind or water to erase the footprints of

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astronauts on the Moon. So those footprints can be there for 100 million years.

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Today scientists are showing interest in robotics and are also working on it. But Leonardo da Vinci had already planned to build a robot in 1495.

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Dubai's Palm Island is a marvel of engineering in itself. These islands are man-made and float on water.

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Squirrels plant more trees in their lifetime than the average human. They forget their walnuts and acorns by hiding them under the ground!

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