The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
In zero gravity, a candle's flame is round and blue.
16
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
A cesium atom in an atomic clock beats over nine billion times a second.
43
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
One cubic foot of gold weighs more than 1,200 pounds!
78
Scientists in Germany have developed a candy that doesn't cause cavities.
11
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199