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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The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
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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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If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
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The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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