The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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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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One third of the electricity produced on earth is used to power electric light bulbs!
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A single speck of dust is half way in size between a subatomic particle and the Earth.
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One barrel of petroleum holds 42 gallons.
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Sound travels fifteen times faster through steel than through air.
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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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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