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
4.5 pounds of sunlight strike the Earth each day.
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A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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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
Iron weighs more after it rusts.
16
Pumice is the only rock that floats on water.
14
Iron weighs more after it rusts.
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