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electrode
(Encyclopedia)electrode, terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit. In most familiar circuits current is carried by metallic conductors, but in som...Plummer, Christopher
(Encyclopedia) Plummer, Christopher (Arthur Christopher Orme), 1929-2021, Canadian-American actor, b. Toronto, Canada. Raised by his mother, Plummer first aspire...electric fish
(Encyclopedia)electric fish, name for various fish that produce electricity by means of organs usually developed from modified muscle tissue. The electric eels of South America are freshwater knifefish unrelated to...ultraviolet radiation
(Encyclopedia)ultraviolet radiation, invisible electromagnetic radiation between visible violet light and X rays; it ranges in wavelength from about 400 to 4 nanometers and in frequency from about 1015 to 1017 hert...cadence
(Encyclopedia)cadence, in music, the ending of a phrase or composition. In singing the voice may be raised or lowered, or the singer may execute elaborate variations within the key. In instrumental music, with deve...Brecht, Bertolt
(Encyclopedia)Brecht, Bertolt bĕrˈtôlt brĕkht [key], 1898–1956, German dramatist and poet, b. Eugen Berthold Friedrich Brecht. His brilliant wit, his outspoken Marxism, and his revolutionary experiments in th...Sprague, Frank Julian
(Encyclopedia)Sprague, Frank Julian sprāg [key], 1857–1934, American electrical engineer, b. Milford, Conn., grad. Annapolis, 1878. He was an assistant to Thomas Edison in 1883 and independently created a superi...Farmer, Moses Gerrish
(Encyclopedia)Farmer, Moses Gerrish, 1820–93, American inventor, b. Boscawen, N.H. He helped build and maintain some of the pioneer telegraph lines of Massachusetts and experimented in multiple telegraphy. He exh...pole, in electricity and magnetism
(Encyclopedia)pole, in electricity and magnetism, point where electric or magnetic force appears to be concentrated. A single electric charge located at a point is sometimes referred to as an electric monopole. An ...public ownership
(Encyclopedia)public ownership, government ownership of lands, streets, public buildings, utilities, and other business enterprises. The theory that all land and its resources belong ultimately to the people and th...Browse by Subject
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