One barrel of petroleum holds 42 gallons.
20
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
No matter how cold it gets, gasoline will not freeze.
107
The bark of an older redwood tree is fireproof.
65
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
Indoor pollution is 10 times more toxic than outdoor pollution.
62