Pumice is the only rock that floats on water.
14
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
One third of the electricity produced on earth is used to power electric light bulbs!
75
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51