Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Sound travels about 4 times faster in water than in air.
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The average home creates more pollution than does the average car.
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Most dust particles in your house are made from dead skin!
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Pumice is the only rock that floats on water.
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Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
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A 'jiffy' is an actual unit of time for 1/100th of a second!
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