Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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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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Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
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A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
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Pumice is the only rock that floats on water.
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Hot water can freeze faster than cold water.
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In zero gravity, a candle's flame is round and blue.
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