Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
There was a pre-WWII movement called Technocracy, which held that scientists and engineers should take over the government and economy from politicians and economists. The leader of the movement was known as the Great Engineer.
6
The light hitting the earth right now is 30 thousand years old.
163
In zero gravity, a candle's flame is round and blue.
16
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7