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Dampier, William

(Encyclopedia)Dampier, William dămˈpēr [key], 1651–1715, English explorer, buccaneer, hydrographer, and naturalist. He fought (1673) in the Dutch War, managed a plantation in Jamaica (1674), and then worked wi...

dark energy

(Encyclopedia)dark energy, repulsive force that opposes the self-attraction of matter (see gravitation) and causes the expansion of the universe to accelerate. The search for dark energy was triggered by the discov...

Maastricht

(Encyclopedia)Maastricht mäsˈtrĭkhtˌ [key], city (1994 pop. 118,102), capital of Limburg prov., SE Netherlands, on the Maas (Meuse) River and on the Albert Canal system. It is an important rail and river transp...

Boleyn, Anne

(Encyclopedia)Boleyn, Anne bo͝olˈĭn, bo͝olĭnˈ [key], 1507?–1536, second queen consort of Henry VIII and mother of Elizabeth I. She was the daughter of Sir Thomas Boleyn, later earl of Wiltshire and Ormonde,...

berkelium

(Encyclopedia)berkelium bûrˈklēəm [key] [from Berkeley], artificially produced radioactive chemical element; symbol Bk; at. no. 97; mass no. of most stable isotope 247; m.p. about 1,050℃; b.p. about 2,590℃;...

Planck, Max

(Encyclopedia)Planck, Max mäks plängk [key], 1858–1947, German physicist. Seeking to explain the experimental spectrum (distribution of electromagnetic energy according to wavelength) of blackbody radiation, he...

Danton, Georges Jacques

(Encyclopedia)Danton, Georges Jacques zhōrzh zhäk däNtôNˈ [key], 1759–94, French statesman, one of the leading figures of the French Revolution. A Parisian lawyer, he became a leader of the Cordeliers early ...

Conrad III, ruler of the Holy Roman Empire

(Encyclopedia)Conrad III, c.1093–1152, German king (1138–52), son of Frederick, duke of Swabia, and Agnes, daughter of Holy Roman Emperor Henry IV; first of the Hohenstaufen dynasty. He joined his brother Frede...

Fianna Fáil

(Encyclopedia)Fianna Fáil fēˈənə fäl [key], Irish political party, organized in 1926 by opponents of the Anglo-Irish treaty of 1921 establishing the Irish Free State and setting up Northern Ireland as part of...

LSD

(Encyclopedia)LSD or lysergic acid diethylamide līˌsûrˈjĭk, dīˌĕthˈələmĭd, dīˌĕthəlămˈĭd [key], alkaloid synthesized from lysergic acid, which is found in the fungus ergot (Claviceps purpurea). I...