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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Hot water can freeze faster than cold water.
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One 75-watt bulb gives more light than three 25-watt bulbs.
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The only letter not appearing on the Periodic Table is the letter "J".
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Research indicates that plants grow healthier when they are stroked.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
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A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
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