Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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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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Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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Pumice is the only rock that floats on water.
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In zero gravity, a candle's flame is round and blue.
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One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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