(Encyclopedia) thereminthereminthĕrˈəmən [key], one of the earliest electronic musical instruments, invented (1920) in the Soviet Union and named for its creator, Leon Theremin. A forerunner of the…
(Encyclopedia) Rodriguez, Alex (Alexander Emmanuel Rodriguez)Rodriguez, Alexrōdrēˈgəs [key], 1975–, American baseball player, b. New York City. Drafted (1993) out of high school by the Seattle…
(Encyclopedia) lancelet, name for small, fishlike lower chordate (see Chordata), also called amphioxus; it shows many affinities with the vertebrates. There are about 30 lancelet species, most…
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Witch hazel, Hamamelis virginiana
witch hazel, common name for some members of the Hamamelidaceae, a family of trees and shrubs found mostly in Asia. The family includes the…
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Illinois, midwestern state in the N central United States. It is bordered by Lake Michigan and Indiana (E); Kentucky, across the Ohio River (SE); Missouri and Iowa, across the…
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Ordinary light sources produce incoherent light, while a laser produces a beam of coherent light.
laser [acronym for light amplification by stimulated emission of radiation],…
(Encyclopedia) lightning, electrical discharge accompanied by thunder, commonly occurring during a thunderstorm. The discharge may take place between one part of a cloud and another part (intracloud…
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(Encyclopedia) Clostridium, genus of gram-positive bacteria (see Gram's stain), several species of which cause significant, potentially deadly diseases in humans as a result of the toxins that each…
(Encyclopedia) wire, metal filament, strand, or solid rod usually having a round cross section. Metals and alloys used for wiremaking are chosen for high tensile strength and ductility or for their…
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