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Did you know?
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
Did you know?
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
Did you know?
More than 34,000 trademarked medication names and more than 10,000 generic medication names are in use in the United States.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.