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Wilczek, Frank Anthony

(Encyclopedia)Wilczek, Frank Anthony, 1951–, American physicist, b. New York City, Ph.D. Princeton, 1974. Wilczek was a professor at Princeton (1974–80, 1989–2000) and at the Univ. of California, Santa Barbar...

Tirole, Jean Marcel

(Encyclopedia)Tirole, Jean Marcel, 1953–, French economist, Ph.D. Massachusetts Institute of Technology, 1981. He was a professor of at the Massachusetts Institute of Technology (1984–91) and École Polytechniq...

Roman de la Rose, Le

(Encyclopedia)Roman de la Rose, Le lə rōmäNˈ də lä rōz [key], French poem of 22,000 lines in eight-syllable couplets. It is in two parts. The first (4,058 lines) was written (c.1237) by Guillaume de Lorris a...

Badajoz

(Encyclopedia)Badajoz bäᵺähōthˈ [key], city, capital of Badajoz prov., SW Spain, in Extremadura, on the ...

Leibniz, Gottfried Wilhelm, Baron von

(Encyclopedia)Leibniz or Leibnitz, Gottfried Wilhelm, Baron von both: gôtˈfrēt vĭlˈhĕlm bärônˈ fan līpˈnĭts [key], 1646–1716, German philosopher and mathematician, b. Leipzig. Although known primarily...

dating

(Encyclopedia)dating, the determination of the age of an object, of a natural phenomenon, or of a series of events. There are two basic types of dating methods, relative and absolute. In relative dating, the tempor...

monopoly

(Encyclopedia)monopoly mənōpˈəlē [key], market condition in which there is only one seller of a certain commodity; by virtue of the long-run control over supply, such a seller is able to exert nearly total con...

poultry

(Encyclopedia)poultry, domesticated fowl kept primarily for meat and eggs; including birds of the order Galliformes, e.g., the chicken, turkey, guinea fowl, pheasant, quail, and peacock; and natatorial (swimming) b...

Alexander, Samuel

(Encyclopedia)Alexander, Samuel, 1859–1938, British philosopher, b. Australia. From 1893 to 1924 he was professor of philosophy at Victoria Univ., Manchester. Strongly influenced by the theory of evolution, Alexa...

tropical year

(Encyclopedia)tropical year, time between successive vernal equinoxes; 365 days, 5 hr, 48 min, 46 sec of mean solar time (see solar time). The tropical year is the basis of the year used in the Gregorian calendar. ...