Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A cesium atom in an atomic clock beats over nine billion times a second.
43
Scientists in Germany have developed a candy that doesn't cause cavities.
11
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
For every gallon of sea water, you get more than a quarter pound of salt.
45
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The average temperature at 40,000 feet above sea level is -60 F.
56