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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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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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Asthma cases in Americans are about 75% higher today than they were in 1980.
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On average, the stomach produces 2 L of hydrochloric acid per day.