A single speck of dust is half way in size between a subatomic particle and the Earth.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
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The left ear is more responsive to words of love and emotion whispered into it than the right.
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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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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The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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Pumice is the only rock that floats on water.
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