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PET scan

(Encyclopedia)PET scan pŏzˈĭtrŏnˌ ĭmĭshˈən təmŏgˈrəfē [key], a medical imaging technique that monitors metabolic, or biochemical, activity in the brain and other organs by tracking the movement and co...

Treitschke, Heinrich von

(Encyclopedia)Treitschke, Heinrich von hīnˈrĭkh fən trīchˈkə [key], 1834–96, German historian. A fervid partisan of Prussia, he left Baden at the outbreak of the Austro-Prussian War (1866) and became profe...

Cambridge, city, England

(Encyclopedia)Cambridge, city and district, Cambridgeshire, E central England, on the River Cam. The city, set in flat country, is most famous as the site of the Univ...

tap dance

(Encyclopedia)tap dance, theatrical dance form in which the dancer, wearing shoes with metal heel and toe taps, beats out complex, syncopated rhythms on the floor. After a slump in popularity in the 1960s, tap ...

La Tour, Georges de

(Encyclopedia)La Tour, Georges de zhôrzh də lä to͞or [key], 1593–1652, French painter. By 1618 he was settled at Lunéville, in his native Lorraine. He bore the title of painter to the king in 1639. La Tour p...

Morita, Akio

(Encyclopedia)Morita, Akio äkˈēō môrˈētä [key], 1921–99, Japanese business executive, b. Nagoya, Japan. The eldest son of a successful sake brewer, Morita joined Masaru Ibuka to found Tokyo Telecommunicat...

Atget, Eugène

(Encyclopedia)Atget, Eugène özhĕnˈ ätzhĕˈ [key], 1857–1927, French photographer. After working as a sailor and then as an actor for many years, Atget became a photographer at the age of 42. He began at onc...

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...

Arledge, Roone Pinckney, Jr.

(Encyclopedia)Arledge, Roone Pinckney, Jr., 1931–2002, American television executive, b. Forest Hills, N.Y., grad. Columbia (B.A., 1952). He was a producer-director (1955–60) at the National Broadcasting Compan...

Chamberlin, Thomas Chrowder

(Encyclopedia)Chamberlin, Thomas Chrowder, 1843–1928, American geologist, b. Mattoon, Ill., grad. Beloit College, 1866. He was professor of geology at Beloit (1873–82), president of the Univ. of Wisconsin (1887...