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
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Iron weighs more after it rusts.
68
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
One cubic foot of gold weighs more than 1,200 pounds!
78
The force of a suction cup is calculated using F=AP.
15