Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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For every gallon of sea water, you get more than a quarter pound of salt.
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One third of the electricity produced on earth is used to power electric light bulbs!
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Aluminum used to be more valuable than gold!
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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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If the chemical sodium is dropped into water it will immediately and violently explode.
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One cubic foot of gold weighs more than 1,200 pounds!
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