When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
For every gallon of sea water, you get more than a quarter pound of salt.
45
The average temperature at 40,000 feet above sea level is -60 F.
56
Your brain is 80% water.
525
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
Diamonds can be shattered with a hammer.
-104
Sound at the right vibration can bore holes through a solid object.
134