Nearly 50% of the world's scientists are assigned to military projects.
71
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
The average temperature at 40,000 feet above sea level is -60 F.
56
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
According to studies, men change their minds two to three times more often than women.
72
No matter how cold it gets, gasoline will not freeze.
107
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75