During his or her lifetime, the average human will grow 590 miles of hair.
69
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
An ounce of platinum can be stretched 10,000 feet.
40
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
62% of us pop our zits.
137
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14