Sound travels about 4 times faster in water than in air.
408
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5
Each day, up to 150 species of life become extinct.
-23
German chemists made a replica of a trophy the size of one molecule.
68
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51