One third of the electricity produced on earth is used to power electric light bulbs!
75
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
Liquid TIDE laundry detergent glows under a blacklight.
96
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Brass doorknobs automatically disinfect themselves in about 8 hours.
18