Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
Pumice is the only rock that floats on water.
14
One cubic foot of gold weighs more than 1,200 pounds!
78
Iron weighs more after it rusts.
16
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
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
The force of a suction cup is calculated using F=AP.
15
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199