Indoor pollution is 10 times more toxic than outdoor pollution.
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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
A cubic yard of air weighs about 2 pounds at sea level.
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The earth is approx. 6,588,000,000,000,000,000 tons.
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The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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