When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Hot water can freeze faster than cold water.
181
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
No matter how cold it gets, gasoline will not freeze.
107
Dr.Jonas Salk, the man who came up with the cure for polio, didn’t patent the drug. This made the drug more affordable to the general public, and he lost out an an estimated $7 billion dollars for himself.
41
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116