The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
A typical oil pressure sending unit on a Ford V-8.
A typical handheld cylinder leakage tester.
A typical TP sensor mounted on the throttle plate of this port-injected engine.
Typical neuron.
Typical Night’s Sleep for a Young Adult
Typical features of expression vectors for E. coli