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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Scientists in Germany have developed a candy that doesn't cause cavities.
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Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
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The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
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Some toothpastes and deodorants contain the same chemicals found in antifreeze.
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At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
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One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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