When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
A cubic yard of air weighs about 2 pounds at sea level.
31
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Most liquid laundry detergents are alive with living organisms that help to break down stains!
88