Pure water (H2O) does not conduct electricity on its own.
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4.5 pounds of sunlight strike the Earth each day.
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The smell of freshly cut grass is actually a plant distress call.
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A 'jiffy' is an actual unit of time for 1/100th of a second!
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Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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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.
5