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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One 75-watt bulb gives more light than three 25-watt bulbs.
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A ball of glass will bounce higher than a ball made of rubber.
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Billions of neutrinos pass unnoticed through your body every second.
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Pumice is the only rock that floats on water.
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