Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
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
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
In zero gravity, a candle's flame is round and blue.
16
A cubic yard of air weighs about 2 pounds at sea level.
31
The only letter not appearing on the Periodic Table is the letter "J".
180
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9