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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
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?
Approximately 25% of all reported medication errors result from some kind of name confusion.