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television

(Encyclopedia)CE5 Video transmission and reception of color and black-and-white television: The camera lens focuses collected light rays into mirrors, which separate the image into its three primary color compon...

acetic acid

(Encyclopedia)acetic acid əsēˈtĭk [key], CH3CO2H, colorless liquid that has a characteristic pungent odor, boils at 118℃, and is miscible with water in all proportions; it is a weak organic carboxylic acid (s...

Hine, Lewis

(Encyclopedia)Hine, Lewis (Lewis Wickes Hine), 1874–1940, American photographer, b. Oshkosh, Wis. Hine dedicated much of his photographic career, which began shortly after he bought his first camera in 1903, to e...

energy

(Encyclopedia)CE5 Relations between potential energy (PE) and kinetic energy (KE) for a swinging pendulum energy, in physics, the ability or capacity to do work or to produce change. Forms of energy include hea...

wave, in physics

(Encyclopedia)wave, in physics, the transfer of energy by the regular vibration, or oscillatory motion, either of some material medium or by the variation in magnitude of the field vectors of an electromagnetic fie...

Leppard, Raymond John

(Encyclopedia)Leppard, Raymond John, 1927–2019, English-American conductor, composer, musicologist, and harpsicordist, b. London. A prominent scholar as well as a conductor, he was especially known for “realizi...

Rutherfurd, Lewis Morris

(Encyclopedia)Rutherfurd, Lewis Morris rŭᵺˈərfərd [key], 1816–92, American physicist, b. New York City, grad. Williams, 1834. From 1837 to 1849 he practiced law. Rutherfurd studied and experimented in celes...

Shaffer, Sir Peter

(Encyclopedia)Shaffer, Sir Peter shăfˈər [key], 1926–2016, English playwright, b. Liverpool, grad. Cambridge, 1950. Before turning to the stage he wrote for radio and television and was the author of several m...

kinetic art

(Encyclopedia)kinetic art, term referring to sculptured works that include motion as a significant dimension. The form was pioneered by Marcel Duchamp, Naum Gabo, and Alexander Calder. Kinetic art is either nonmech...

Gotham

(Encyclopedia)Gotham gŏthˈəm [key], name for New York City first used by Washington Irving and others in the Salmagundi Papers, with satirical reference to Gotham, England, where the wise men acted as fools in o...