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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A cubic yard of air weighs about 2 pounds at sea level.
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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.
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Pumice is the only rock that floats on water.
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Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
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A ball of glass will bounce higher than a ball made of rubber.
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Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
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