Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Nylon is made from coal and petroleum.
42
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12
The smell of freshly cut grass is actually a plant distress call.
31
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
According to studies, men change their minds two to three times more often than women.
72