Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Pumice is the only rock that floats on water.
14
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
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
Scientists in Germany have developed a candy that doesn't cause cavities.
11
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71