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Did you know?
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).
Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
There are more sensory neurons in the tongue than in any other part of the body.