When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
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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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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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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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Neanderthal man had a brain capacity 100cc larger than modern man's.
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Iron weighs more after it rusts.
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A cesium atom in an atomic clock beats over nine billion times a second.
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Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
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