Sound travels fifteen times faster through steel than through air.
134
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Pure water (H2O) does not conduct electricity on its own.
46
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
The sun is 330,330 times larger than the earth.
75
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Research indicates that plants grow healthier when they are stroked.
173