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Busch, Wilhelm

(Encyclopedia)Busch, Wilhelm, 1832–1908, German cartoonist, painter, and poet. After studying at the academies of Antwerp, Düsseldorf, and Munich, he joined the staff of the Fliegende Blätter, to which he contr...

Heisenberg, Werner

(Encyclopedia)Heisenberg, Werner vĕrˈnər hīˈzənbĕrk [key], 1901–76, German physicist. One of the founders of the quantum theory, he is best known for his uncertainty principle, or indeterminacy principle, ...

DeLand

(Encyclopedia)DeLand də lăndˈ [key], resort city (2020 pop. 37,351), seat of Volusia co., NE Fla.; inc. ...

Ferdinand IV, Spanish king of Castile and León

(Encyclopedia)Ferdinand IV, 1285–1312, Spanish king of Castile and León (1295–1312), son and successor of Sancho IV. His mother, María de Molina, was regent during his turbulent minority. He tried unsuccessfu...

Burgos

(Encyclopedia)Burgos bo͞orˈgōs [key], city, capital of Burgos prov., N Spain, in Castile and Léon, on a...

John II, Spanish king of Castile and León

(Encyclopedia)John II, 1405–54, Spanish king of Castile and León (1406–54), son and successor of Henry III. He was little interested in government, which he entrusted to his favorite Alvaro de Luna. Literature...

Medina del Campo

(Encyclopedia)Medina del Campo māᵺēˈnä ᵺĕl kämˈpō [key], town (1990 pop. 19,965), Valladolid prov., central Spain, in Castile and León. It is a communications center and agricultural market with food-p...

Moseley, Henry Gwyn Jeffreys

(Encyclopedia)Moseley, Henry Gwyn Jeffreys mōzˈlē [key], 1887–1915, English physicist, grad. Trinity College, Oxford, 1910. He began his research under Ernest Rutherford while serving as lecturer at the Univ. ...

John I, Spanish king of Castile and León

(Encyclopedia)John I, 1358–90, Spanish king of Castile and León (1379–90), son and successor of Henry II. He tried unsuccessfully to unite the Portuguese and Castilian crowns but was twice defeated by the Port...

Lynen, Feodor

(Encyclopedia)Lynen, Feodor fāōˈdôr lēˈnən [key], 1911–79, German biochemist, grad. Univ. of Munich (Ph.D. 1937). He began teaching at the Max Planck Institute for Cell Chemistry in Munich in 1947. His res...