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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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
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Research indicates that plants grow healthier when they are stroked.
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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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Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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Balsa wood is classified as a hard wood!
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Iron weighs more after it rusts.
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