Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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If the chemical sodium is dropped into water it will immediately and violently explode.
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One barrel of petroleum holds 42 gallons.
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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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The force of a suction cup is calculated using F=AP.
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
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One ragweed plant can release as many as one billion grains of pollen!
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