One cubic foot of gold weighs more than 1,200 pounds!
78
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Sound at the right vibration can bore holes through a solid object.
134
Iron weighs more after it rusts.
68
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
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61