Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
One 75-watt bulb gives more light than three 25-watt bulbs.
57
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 are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Your brain is 80% water.
525
Diamonds can be shattered with a hammer.
-104
The bark of an older redwood tree is fireproof.
65
The earth is approx. 6,588,000,000,000,000,000 tons.
175