The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
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A ball of glass will bounce higher than a ball made of rubber.
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Your brain is 80% water.
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Sound at the right vibration can bore holes through a solid object.
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A cubic yard of air weighs about 2 pounds at sea level.
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