Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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A cesium atom in an atomic clock beats over nine billion times a second.
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Pumice is the only rock that floats on water.
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Hot water can freeze faster than cold water.
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Nylon is made from coal and petroleum.
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Most dust particles in your house come from dead skin.
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According to studies, men change their minds two to three times more often than women.
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