Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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Sound travels about 4 times faster in water than in air.
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For every gallon of sea water, you get more than a quarter pound of salt.
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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Cold water weighs more than hot water.
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