When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Nearly 50% of the world's scientists are assigned to military projects.
71
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
Liquid TIDE laundry detergent glows under a blacklight.
96
Balsa wood is classified as a hard wood!
41
The average home creates more pollution than does the average car.
33
Pumice is the only rock that floats on water.
14