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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.
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More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.