When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89