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 ragweed plant can release as many as one billion grains of pollen!
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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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The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
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Balsa wood is classified as a hard wood!
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Brass doorknobs automatically disinfect themselves in about 8 hours.
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