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maser

(Encyclopedia)maser māˈzər [key], device for creation, amplification, and transmission of an intense, highly focused beam of high-frequency radio waves. The name maser is an acronym for microwave amplification b...

Davis, Sir Colin Rex

(Encyclopedia)Davis, Sir Colin Rex, 1927–2013, English conductor. Davis began his musical career as a clarinetist, and was a self-taught conductor. After serving with the Sadler's Wells Opera, he was the conducto...

Heaviside, Oliver

(Encyclopedia)Heaviside, Oliver hĕvˈēsīdˌ [key], 1850–1925, English physicist. He did valuable work in telephony and in the theory of electrical conduction in cables and other areas of electric theory. He su...

Guthrie, Sir Tyrone

(Encyclopedia)Guthrie, Sir Tyrone, 1900–1971, English stage director, playwright, and writer. Guthrie directed the Scottish National Players (1926–28), the Festival Theatre, Cambridge (1929–30), and the Old V...

galena

(Encyclopedia)galena gəlēˈnə [key] or lead glance, lustrous, blue-gray mineral crystallizing usually in cubes, sometimes in octahedrons. It is the most important ore and the principal source of lead. It consist...

Jan Mayen

(Encyclopedia)Jan Mayen yän mīˈən [key], island, c.145 sq mi (380 sq km), in the Arctic Ocean, c.300 mi (480 km) E of Scoresby Sound, E Greenland. It was annexed by Norway in 1929. The island is barren tundra l...

Athlone

(Encyclopedia)Athlone ăthlōnˈ [key], town, Co. Westmeath, central Republic of Ireland, on the Shannon River. It is an important road and rail junction and a busy inland port, reached...

Oort, Jan Hendrik

(Encyclopedia)Oort, Jan Hendrik ōrt [key], 1900–1992, Dutch astronomer. He confirmed (1927) Bertil Lindblad's theory of the Milky Way galaxy's rotation. In the 1950s he and his colleagues used radio astronomical...

Mansfield, Sir Peter

(Encyclopedia)Mansfield, Sir Peter, 1933–2017, British physicist, Ph.D. Queen Mary College, London, 1962. He was a professor at the Univ. of Nottingham from 1964 to 1994. In 2003 Mansfield shared the Nobel Prize ...

Ritter, Tex

(Encyclopedia)Ritter, Tex (Woodward Maurice Ritter), 1905–74, American country singer, b. Murvaul, Tex. He moved (1930) to New York, where he performed in musicals and on the radio. Settling (1936) in California,...