Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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There is a surgical implant being developed that will give you an orgasm at the touch of a button.
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In zero gravity, a candle's flame is round and blue.
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Nylon is made from coal and petroleum.
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