When glass breaks, the cracks move faster than 3,000 miles per hour.
47
Water is actually naturally blue.
48
Speed dating was invented by a Rabbi in 1999.
45
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9
In many countries, urine was used as a detergent for washing.
17
'Second Street' is the most common street name in the U.S.; 'First Street' is the sixth! "
41
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
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