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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Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
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The average temperature at 40,000 feet above sea level is -60 F.
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Some toothpastes and deodorants contain the same chemicals found in antifreeze.
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The smell of freshly cut grass is actually a plant distress call.
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For every gallon of sea water, you get more than a quarter pound of salt.
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Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
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