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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A cesium atom in an atomic clock beats over nine billion times a second.
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Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
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Each day, up to 150 species of life become extinct.
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During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
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Some toothpastes and deodorants contain the same chemicals found in antifreeze.
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In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
One 75-watt bulb gives more light than three 25-watt bulbs.
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