Diamonds can be shattered with a hammer.
-104
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Pumice is the only rock that floats on water.
14
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
Aluminum used to be more valuable than gold!
84
The average temperature at 40,000 feet above sea level is -60 F.
56
One third of the electricity produced on earth is used to power electric light bulbs!
75