Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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In zero gravity, a candle's flame is round and blue.
16
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Sound travels fifteen times faster through steel than through air.
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Out of all the senses, smell is most closely linked to memory.
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Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
A cesium atom in an atomic clock beats over nine billion times a second.
43
One cubic foot of gold weighs more than 1,200 pounds!
78