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Rilke, Rainer Maria

(Encyclopedia) Rilke, Rainer MariaRilke, Rainer Mariarīˈnər märēˈä rĭlˈkə [key], 1875–1926, German poet, b. Prague, the greatest lyric poet of modern Germany. Rilke's first book of poetry, Leben…

Stevenson, Robert Louis

(Encyclopedia) Stevenson, Robert Louis, 1850–94, Scottish novelist, poet, and essayist, b. Edinburgh. Handicapped from youth by delicate health, he struggled all his life against tuberculosis. He…

Humboldt, Alexander, Freiherr von

(Encyclopedia) Humboldt, Alexander, Freiherr vonHumboldt, Alexander, Freiherr vonhŭmˈbōlt, Ger. älĕksänˈdər frīˈhĕr fən h&oobreve;mˈbôlt [key], 1769–1859, German naturalist, inventor, explorer,…

children's literature

(Encyclopedia) children's literature, writing whose primary audience is children. See also children's book illustration. The contributions and innovations of the 19th cent. continued into the 20th…

steamship

(Encyclopedia) steamship, watercraft propelled by a steam engine or a steam turbine. Despite such innovations as turbo-electric drive, which converts steam energy into rotational power for…

Dürer, Albrecht

(Encyclopedia) Dürer, AlbrechtDürer, Albrechtälˈbrĕkht dürˈər [key], 1471–1528, German painter, engraver, and theoretician, most influential artist of the German school, b. Nuremberg. Dürer's…

hydrogen bomb

(Encyclopedia) hydrogen bomb or H-bomb, weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes. In an atomic bomb, uranium or plutonium is split into lighter…

modulation, in communications

(Encyclopedia) CE5 Modulation modulation, in communications, process in which some characteristic of a wave (the carrier wave) is made to vary in accordance with an information-bearing signal…

color

(Encyclopedia) color, effect produced on the eye and its associated nerves by light waves of different wavelength or frequency. Light transmitted from an object to the eye stimulates the different…