The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Pumice is the only rock that floats on water.
14
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
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
Research indicates that plants grow healthier when they are stroked.
173
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
One third of the electricity produced on earth is used to power electric light bulbs!
75