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.
5
Optical illusions occur when what the eyes see conflicts with what the brain expects.
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Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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Pumice is the only rock that floats on water.
14
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
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Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9