The Earth's atmosphere weighs about 5.5 quadrillion tons.
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The average temperature at 40,000 feet above sea level is -60 F.
56
Iron weighs more after it rusts.
16
Scientists in Germany have developed a candy that doesn't cause cavities.
11
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
All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
51
Balsa wood is classified as a hard wood!
41