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Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
Did you know?
In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
Did you know?
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.