One cubic foot of gold weighs more than 1,200 pounds!
78
Your brain is 80% water.
525
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
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Research indicates that plants grow healthier when they are stroked.
173
Scientists aren't sure what color dinosaurs were.
312
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Iron weighs more after it rusts.
68