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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.