One third of the electricity produced on earth is used to power electric light bulbs!
75
Iron weighs more after it rusts.
68
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
The bark of an older redwood tree is fireproof.
65
The left ear is more responsive to words of love and emotion whispered into it than the right.
40