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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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Excessive alcohol use costs the country approximately $235 billion every year.

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The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

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Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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