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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Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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Iron weighs more after it rusts.
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The bark of an older redwood tree is fireproof.
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The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
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One ragweed plant can release as many as one billion grains of pollen!
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