Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The sun is 330,330 times larger than the earth.
75
In zero gravity, a candle's flame is round and blue.
16
Iron weighs more after it rusts.
16
According to studies, men change their minds two to three times more often than women.
72
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
