Aluminum used to be more valuable than gold!
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In zero gravity, a candle's flame is round and blue.
16
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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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.
5
Scientists are now able to grow 'beating' heart tissue in a lab!
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There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
One ragweed plant can release as many as one billion grains of pollen!
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