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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...

arc, in electricity

(Encyclopedia)arc, in electricity, highly luminous and intensely hot discharge of electricity between two electrodes. The arc was discovered early in the 19th cent. by the English scientist Sir Humphry Davy, who so...

Archaebacteria

(Encyclopedia)Archaebacteria ärˌkēbăktĭrˈēə [key], diverse group of bacteria (prokaryotes), sometimes called the archaea and considered a major group unto themselves. Archaebacteria are contrasted with the ...

Spratly Islands

(Encyclopedia)Spratly Islands, group of about 100 low islands and coral reefs in the central South China Sea, intersecting busy shipping lanes. The whole group is claimed by China, Taiwan, and Vietnam, and parts ar...

Calgary

(Encyclopedia)Calgary kălˈgərē [key], city (2020 pop. 1,239,220), S Alta., Canada, at the confluence of ...

Vyborg

(Encyclopedia)Vyborg vĭˈbərk [key], Finnish Viipuri, Swed. Viborg, city (1989 pop. 81,000), NW European Russia, NW of St. Petersburg and near the Finnish border, on Vyborg Bay and the Gulf of Finland. A Baltic p...

Cavendish, Henry

(Encyclopedia)Cavendish, Henry, 1731–1810, English physicist and chemist, b. Nice. He was the son of Lord Charles Cavendish and grandson of the 2d duke of Devonshire. He was a recluse, and most of his writings we...

Centralia

(Encyclopedia)Centralia sĕntrāˈlēə [key]. 1 City (2020 pop. 12,182), Clinton and Marion counties, S Il...

Bonnie and Clyde

(Encyclopedia)Bonnie and Clyde, Bonnie Parker, 1910–34, b. Rowena, Tex., and Clyde Barrow, 1909–34, b. Tellice, Tex., notorious American criminals during the Great Depression. Joining forces in 1932, they trave...

fire fighting

(Encyclopedia)fire fighting, the use of strategy, personnel, and apparatus to extinguish, to confine, or to escape from fire. Ancient Rome is known to have had a fire department consisting by the 1st cent. of app...