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Treisman, Anne

(Encyclopedia)Treisman, Anne, 1935–2018, British cognitive psychologist, b. Anne Marie Taylor, Ph.D. Oxford, 1962. She taught at Oxford from 1968, the Univ. of British Columbia from 1978, Univ. of California, Ber...

Pyle, Ernie

(Encyclopedia)Pyle, Ernie (Ernest Taylor Pyle), 1900–1945, American journalist, b. Dana, Ind. After working (1923–32) as a reporter, an editor, and an aviation writer, he became managing editor of the Washingto...

parallel processing

(Encyclopedia)parallel processing, the concurrent or simultaneous execution of two or more parts of a single computer program, at speeds far exceeding those of a conventional computer. Parallel processing requires ...

Carlotta

(Encyclopedia)Carlotta, Span. Carlota kärlōˈtä [key], 1840–1927, empress of Mexico, daughter of Leopold I of Belgium, christened Marie Charlotte Amélie. She married (1857) Maximilian, archduke of Austria and...

Tudor

(Encyclopedia)Tudor, royal family that ruled England from 1485 to 1603. Its founder was Owen Tudor, of a Welsh family of great antiquity, who was a squire at the court of Henry V and who married that king's widow, ...

Compromise of 1850

(Encyclopedia)Compromise of 1850. The annexation of Texas to the United States and the gain of new territory by the Treaty of Guadalupe Hidalgo at the close of the Mexican War (1848) aggravated the hostility betwee...

lightship

(Encyclopedia)lightship, moored vessel bearing lights and other signal devices to guide ships and warn of hazards to navigation. Lightships are generally stationed at points where a lighthouse cannot be erected; th...

Hevelius, Johannes

(Encyclopedia)Hevelius, Johannes yōhänˈəs hāvāˈlēo͝os [key], 1611–87, Polish astronomer, b. Danzig. From a finely equipped observatory in his house at Danzig, assisted by his wife Elizabeth, he made valu...

Ivan VI

(Encyclopedia)Ivan VI, 1740–64, czar of Russia (1740–41), great-grandson of Ivan V. He was the son of Prince Anthony Ulric of Brunswick-Wolfenbüttel and of Anna Leopoldovna. An infant, he succeeded his great-a...

Chatham, town, England

(Encyclopedia)Chatham, town, Kent, SE England, on the Medway River. Chatham, Rochester, and Gillingham form a contiguous urban area that is now the unitary borough of Medway. Chatham was a major naval station, with...