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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.