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Wallis, John

(Encyclopedia)Wallis, John wŏlˈĭs [key], 1616–1703, English mathematician. He was Savilian professor of geometry at Oxford from 1649. He systematized the use of formulas, introduced the symbol ∞ for infinity...

Peirce, Charles Sanders

(Encyclopedia)Peirce, Charles Sanders pûrs [key], 1839–1914, American philosopher and polymath, b. Cambridge, Mass., grad. Harvard, 1859; son of Benjamin Peirce. Except for occasional lectures he renounced the r...

Russell, Bertrand Arthur William Russell, 3d Earl

(Encyclopedia)Russell, Bertrand Arthur William Russell, 3d Earl, 1872–1970, British philosopher, mathematician, and social reformer, b. Trelleck, Wales. As with his philosophical stance, Russell's positions on ...

allegory

(Encyclopedia)allegory, in literature, symbolic story that serves as a disguised representation for meanings other than those indicated on the surface. The characters in an allegory often have no individual persona...

Perse, St.-John

(Encyclopedia)Perse, St.-John, pseud. of Alexis Saint-Léger Léger, 1887–1975, French poet and diplomat, b. West Indies. Léger, an opponent of appeasement of the Nazis, was enormously influential in France's fo...

Doomsday 2000

(Encyclopedia)Doomsday 2000, term coined by Canadian computer consultant Peter de Jager in 1993 to describe the operational and financial impact of a defect of contemporary computer hardware and software, known as ...

Dumah

(Encyclopedia)Dumah do͞oˈmə [key], in the Bible. 1 Descendants of Ishmael, an Arabic tribe in the desert of N Arabia. 2 Town, S ancient Palestine. 3 Apparently a symbolic name for Edom. ...

Ariel, in the Bible

(Encyclopedia)Ariel āˈrēĕl [key], in the Bible, aide of Ezra. In two other passages AV calls them “lionlike men” (“two ariels of Moab” in RV). Nothing is known of them. Ariel is also used as a symbolic ...

John XXI, pope

(Encyclopedia)John XXI, d. 1277, pope (1276–77), a Portuguese named Pedro Giuliano; successor of Adrian V. Known generally as Peter of Spain (Petrus Hispanus), he is the only Portuguese pope. Peter's reputation a...

Bridgman, Percy Williams

(Encyclopedia)Bridgman, Percy Williams, 1882–1961, American physicist, b. Cambridge, Mass., grad. Harvard (B.A., 1904; Ph.D., 1908). From 1910 he taught at Harvard, as professor from 1919. He won the 1946 Nobel P...