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
Hot water can freeze faster than cold water.
181
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
In zero gravity, a candle's flame is round and blue.
16
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18