During his or her lifetime, the average human will grow 590 miles of hair.
69
When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!
114
There are 170,000,000,000,000,000,000,000,000 ways to play the ten opening moves in a game of chess.
266
You can immediately cool down a car that has been sitting under the sun by rolling down the window on one side and opening-closing the door on the other side 5-6 times.
23
The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Your fingernails grow faster in summer.
744