Nearly 50% of the world's scientists are assigned to military projects.
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One third of the electricity produced on earth is used to power electric light bulbs!
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In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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A ball of glass will bounce higher than a ball made of rubber.
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
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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.
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