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
Nylon is made from coal and petroleum.
42
A cubic yard of air weighs about 2 pounds at sea level.
31
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
One ragweed plant can release as many as one billion grains of pollen!
51
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79