Sound travels fifteen times faster through steel than through air.
134
Nearly 50% of the world's scientists are assigned to military projects.
71
Most dust particles in your house come from dead skin.
48
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
Research indicates that plants grow healthier when they are stroked.
173
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13