Most dust particles in your house are made from dead skin!
67
Sound travels about 4 times faster in water than in air.
408
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155