One cubic foot of gold weighs more than 1,200 pounds!
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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
Scientists aren't sure what color dinosaurs were.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Aluminum used to be more valuable than gold!
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
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