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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).
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
Medication errors are more common among seriously ill patients than with those with minor conditions.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.