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Cyanide works by making the human body unable to use oxygen.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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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.