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welding

(Encyclopedia)welding, process for joining separate pieces of metal in a continuous metallic bond. Cold-pressure welding is accomplished by the application of high pressure at room temperature; forge welding (forgi...

Kelvin temperature scale

(Encyclopedia)Kelvin temperature scale, a temperature scale having an absolute zero below which temperatures do not exist. Absolute zero, or 0K, is the temperature at which molecular energy is a minimum, and it c...

Levi, Primo

(Encyclopedia)Levi, Primo prēˈmō lāˈvē [key], 1919–87, Italian writer. A chemist of Jewish descent, Levi was sent to the concentration camp at Auschwitz during World War II. His first memoir, If This Is a M...

Thompson, Francis

(Encyclopedia)Thompson, Francis, 1859–1907, English poet. His poetry, usually on religious subjects, is noted for its brilliant imagery and sonorous language. He was educated for the Roman Catholic priesthood at ...

Bogdanovich, Peter

(Encyclopedia) Bogdanovich, Peter, 1939 - 2021, American film director, actor, and critic, b. Kingston, N.Y. Bogdanovich was the son of Serbian immigrants. He studie...

Indus valley civilization

(Encyclopedia)Indus valley civilization, ancient civilization that arose about 3300 b.c. in the valley of the Indus River and its tributaries, in the northwestern portion of the Indian subcontinent, i.e., present-d...

Hitchcock, Sir Alfred

(Encyclopedia)Hitchcock, Sir Alfred, 1899–1980, English-American film director, writer, and producer, b. London. Hitchcock began his career as a director in 1925 and became prominent with The 39 Steps (1935) and ...

Owen Glendower

(Encyclopedia)Owen Glendower glĕnˈdouˌər, glĕndouˈər [key], Welsh Owain Glyndwr, 1359?–1416?, Welsh national leader. A scion of the princes of Powys, he was also claimant through his mother to the lands of...

Warner Brothers

(Encyclopedia)Warner Brothers, American movie studio executives and producers. Sons of poor E European Jewish immigrants, the brothers were Harry Morris (1881–1958), Albert (1884–1967), Samuel Louis (1887–192...

Bowles, Paul

(Encyclopedia)Bowles, Paul, 1910–99, American writer and composer, b. New York City. He studied in Paris with Virgil Thomson and Aaron Copland and composed (1930s–40s) a number of modernist operas, ballets, son...