The average temperature at 40,000 feet above sea level is -60 F.
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Indoor pollution is 10 times more toxic than outdoor pollution.
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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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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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Scientists are now able to grow 'beating' heart tissue in a lab!
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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
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