Aluminum used to be more valuable than gold!
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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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Scientists in Germany have developed a candy that doesn't cause cavities.
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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.
17
The left ear is more responsive to words of love and emotion whispered into it than the right.
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Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
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