Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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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
Diamonds can be shattered with a hammer.
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
A cubic yard of air weighs about 2 pounds at sea level.
31
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
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