Iron weighs more after it rusts.
16
One third of the electricity produced on earth is used to power electric light bulbs!
75
Aluminum used to be more valuable than gold!
84
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Sound at the right vibration can bore holes through a solid object.
134