When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Liquid TIDE laundry detergent glows under a blacklight.
96
According to studies, men change their minds two to three times more often than women.
72
Balsa wood is classified as a hard wood!
41
A cubic yard of air weighs about 2 pounds at sea level.
31