The Earth's atmosphere weighs about 5.5 quadrillion tons.
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Nylon is made from coal and petroleum.
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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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According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
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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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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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