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.
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Each day, up to 150 species of life become extinct.
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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
Cold water weighs more than hot water.
93
In zero gravity, a candle's flame is round and blue.
16
Iron weighs more after it rusts.
16
One barrel of petroleum holds 42 gallons.
20
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16