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The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
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Everyone has one nostril that is larger than the other.
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Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.
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The average adult has about 21 square feet of skin.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.