The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Diamonds can be shattered with a hammer.
-104
Nylon is made from coal and petroleum.
42
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
One third of the electricity produced on earth is used to power electric light bulbs!
75