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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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The horizontal fraction bar was introduced by the Arabs.
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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).