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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).
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The longest a person has survived after a heart transplant is 24 years.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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The average office desk has 400 times more bacteria on it than a toilet.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.