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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Sound travels fifteen times faster through steel than through air.
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A cubic yard of air weighs about 2 pounds at sea level.
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Your brain is 80% water.
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At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
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Liquid TIDE laundry detergent glows under a blacklight.
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In zero gravity, a candle's flame is round and blue.
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The force of a suction cup is calculated using F=AP.
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