Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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The hair of an adult man or woman can stretch 25 percent of its length without breaking.
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Nylon is made from coal and petroleum.
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One cubic foot of gold weighs more than 1,200 pounds!
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Some toothpastes and deodorants contain the same chemicals found in antifreeze.
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Scientists aren't sure what color dinosaurs were.
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Balsa wood is classified as a hard wood!
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