The average temperature at 40,000 feet above sea level is -60 F.
56
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The force of a suction cup is calculated using F=AP.
15
Nearly 50% of the world's scientists are assigned to military projects.
71