The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Cold water weighs more than hot water.
93
The average home creates more pollution than does the average car.
33
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
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Research indicates that plants grow healthier when they are stroked.
173
Hot water can freeze faster than cold water.
181