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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Cold water weighs more than hot water.
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The average temperature at 40,000 feet above sea level is -60 F.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
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In zero gravity, a candle's flame is round and blue.
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Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
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At room temperature, the average air molecule travels at the speed of a rifle bullet.
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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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