Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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According to studies, men change their minds two to three times more often than women.
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Most dust particles in your house are made from dead skin!
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Scientists are now able to grow 'beating' heart tissue in a lab!
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Sound travels fifteen times faster through steel than through air.
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Iron weighs more after it rusts.
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