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submersible

(Encyclopedia)submersible, small, mobile undersea research vessel capable of functioning in the ocean depths. Development of a great variety of submersibles during the later 1950s and 1960s came about as a result o...

Desnos, Robert

(Encyclopedia)Desnos, Robert rôbĕrˈ dĕsnôsˈ [key], 1900–1945, French poet. Among the best-known surrealist poets, he was one of the chief proponents of so-called automatic writing. He put himself in a tranc...

Marsh, Charles Wesley

(Encyclopedia)Marsh, Charles Wesley, 1834–1918, American inventor and editor, b. Ontario. In 1849 his family moved to De Kalb co., Ill. Assisted by his brother William, he designed a hand-binding harvester and ob...

Black Monday

(Encyclopedia)Black Monday, Oct. 19, 1987, in U.S. history, day of financial panic. The Dow Jones Average fell 508.32 points, a drop of 22.6%, the largest since 1914. The point decline as well as the volume, 604.33...

gladiators

(Encyclopedia)gladiators [Lat.,=swordsmen], in ancient Rome, class of professional fighters, who performed for exhibition. Gladiatorial combats usually took place in amphitheaters. They probably were introduced fro...

Nemean lion

(Encyclopedia)Nemean lion nĭmēˈən [key], in Greek mythology, an enormous lion, said to be the offspring of Echidna and Typhon. It was invulnerable to all weapons until Hercules, in his first labor, strangled it...

atomic bomb

(Encyclopedia)atomic bomb or A-bomb, weapon deriving its explosive force from the release of nuclear energy through the fission (splitting) of heavy atomic nuclei. The first atomic bomb was produced at the Los Alam...

firearm

(Encyclopedia)firearm, device consisting essentially of a straight tube to propel shot, shell, or bullets by the explosion of gunpowder. Although the Chinese discovered gunpowder as early as the 9th cent., they did...

stall

(Encyclopedia)stall, small division of a larger space, sometimes partly partitioned. The term is used for a booth for display and selling at an exhibition, for a compartment in a stable or kennel, or, in England, f...

Jabalpur

(Encyclopedia)Jabalpur jŭbˌəlpôrˈ [key], city (1991 pop. 888,916), Madhya Pradesh state, central India, on the Narmada River. It is a district administrative center and an important rail junction and military ...