Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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No matter how cold it gets, gasoline will not freeze.
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For every gallon of sea water, you get more than a quarter pound of salt.
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The earth is approx. 6,588,000,000,000,000,000 tons.
175
Sound travels about 4 times faster in water than in air.
408
One cubic foot of gold weighs more than 1,200 pounds!
78
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
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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