In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
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Iron weighs more after it rusts.
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A 'jiffy' is an actual unit of time for 1/100th of a second!
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Scientists in Germany have developed a candy that doesn't cause cavities.
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Sound travels fifteen times faster through steel than through air.
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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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