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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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
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Sound travels fifteen times faster through steel than through air.
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0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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Hot water can freeze faster than cold water.
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Diamonds can be shattered with a hammer.
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Most dust particles in your house come from dead skin.
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One cubic foot of gold weighs more than 1,200 pounds!
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