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electronics industry

(Encyclopedia)electronics industry, the business of creating, designing, producing, and selling devices such as radios, televisions, stereos, computers, semiconductors, transistors, and integrated circuits (see ele...

oratory

(Encyclopedia)oratory, the art of swaying an audience by eloquent speech. In ancient Greece and Rome oratory was included under the term rhetoric, which meant the art of composing as well as delivering a speech. Or...

magnetic resonance

(Encyclopedia)magnetic resonance, in physics and chemistry, phenomenon produced by simultaneously applying a steady magnetic field and electromagnetic radiation (usually radio waves) to a sample of atoms and then a...

record player

(Encyclopedia)record player or phonograph, device for reproducing sound that has been recorded as a spiral, undulating groove on a disk. This disk is known as a phonograph record, or simply a record (see sound reco...

Barrymore

(Encyclopedia)Barrymore, Anglo-American family of actors. Lionel and Ethel's younger brother, John Barrymore,John Barrymore, 1882–1942, b. Philadelphia, tried his hand at painting and cartooning before turning ...

gamma-ray astronomy

(Encyclopedia)gamma-ray astronomy, study of astronomical objects by analysis of the most energetic electromagnetic radiation they emit. Gamma rays are shorter in wavelength and hence more energetic than X rays (see...

X-ray astronomy

(Encyclopedia)X-ray astronomy, study of celestial objects by means of the X rays they emit, in the wavelength range from 0.01 to 10 nanometers. X-ray astronomy dates to 1949 with the discovery that the sun emits X ...

Évreux

(Encyclopedia)Évreux āvröˈ [key], town , capital of Eure dept., N France, in Normandy. It is an industr...

Greeley, Andrew Moran

(Encyclopedia)Greeley, Andrew Moran, 1928–2013, American Roman Catholic priest, sociologist, and author, b. Oak Park, Ill.; studied St. Mary of the Lake Seminary, Mundelein, Ill. (ordained 1954). He was (1954–6...

Ginzburg, Vitaly Lazarevich

(Encyclopedia)Ginzburg, Vitaly Lazarevich, 1916–2009, Russian physicist, Ph.D. Moscow State Univ., 1938. He was a researcher at Lebedev Physics Institute of the USSR (later Russian) Academy of Sciences after 1940...