Most dust particles in your house come from dead skin.
48
Iron weighs more after it rusts.
68
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Cold water weighs more than hot water.
93
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The earth is approx. 6,588,000,000,000,000,000 tons.
175
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18