The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
In zero gravity, a candle's flame is round and blue.
16
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
Iron weighs more after it rusts.
68
A cesium atom in an atomic clock beats over nine billion times a second.
43
German chemists made a replica of a trophy the size of one molecule.
68