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Did you know?
Your heart beats over 36 million times a year.
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?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
By definition, when a medication is administered intravenously, its bioavailability is 100%.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.