A cesium atom in an atomic clock beats over nine billion times a second.
43
Most dust particles in your house are made from dead skin!
67
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
The bark of an older redwood tree is fireproof.
65
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
No matter how cold it gets, gasoline will not freeze.
107