Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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A cubic yard of air weighs about 2 pounds at sea level.
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The average temperature at 40,000 feet above sea level is -60 F.
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For every gallon of sea water, you get more than a quarter pound of salt.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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The force of a suction cup is calculated using F=AP.
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One ragweed plant can release as many as one billion grains of pollen!
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In zero gravity, a candle's flame is round and blue.
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