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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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Pumice is the only rock that floats on water.
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Your brain is 80% water.
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One barrel of petroleum holds 42 gallons.
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Research indicates that plants grow healthier when they are stroked.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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