Iron weighs more after it rusts.
68
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
German scientists claim to have evidence that suggests that our universe may exist inside of a computer simulated Matrix.
18
The average temperature at 40,000 feet above sea level is -60 F.
56
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
The force of a suction cup is calculated using F=AP.
15
A cesium atom in an atomic clock beats over nine billion times a second.
43