When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
According to studies, men change their minds two to three times more often than women.
72
Iron weighs more after it rusts.
16
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Pure water (H2O) does not conduct electricity on its own.
46