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Sigismund I

(Encyclopedia)Sigismund I, 1467–1548, king of Poland (1506–48), son of Casimir IV. Elected to succeed his brother, Alexander I, Sigismund faced the problem of consolidating his domestic power in order successfu...

mountain climbing

(Encyclopedia)mountain climbing, the practice of climbing to elevated points for sport, pleasure, or research. Also called mountaineering, it is practiced throughout the world. Many mountain climbing clubs have...

Ensor, James Ensor, Baron

(Encyclopedia)Ensor, James Ensor, Baron jĕms äNsôrˈ [key], 1860–1949, Belgian painter and etcher. Ensor's imagery reflected one of the most bizarre and powerful visions of his era. He left his native Ostend t...

Brook Farm

(Encyclopedia)Brook Farm, 1841–47, an experimental farm at West Roxbury, Mass., based on cooperative living. Founded by George Ripley, a Unitarian minister, the farm was initially financed by a joint-stock compan...

spintronics

(Encyclopedia)spintronics, spin electronics, or magnetoelectronics, science and technology that harnesses the spin state of electrons in addition to the electrical charge state to store data or perform calculation...

psychotherapy

(Encyclopedia)psychotherapy, treatment of mental and emotional disorders using psychological methods. Psychotherapy, thus, does not include physiological interventions, such as drug therapy or electroconvulsive the...

Queensland

(Encyclopedia)Queensland, state (2016 pop. 4,703,193), 667,000 sq mi (1,727,200 sq km), NE Australia. Brisbane is the capital; other important cities are Gold Coast, Toowoomba, Townsville, Rockhampton, Cairns, and ...

mechanics

(Encyclopedia)mechanics, branch of physics concerned with motion and the forces that tend to cause it; it includes study of the mechanical properties of matter, such as density, elasticity, and viscosity. Mechanics...

Donatello

(Encyclopedia)Donatello dŏnətĕlˈō, Ital. dōnätĕlˈlō [key], c.1386–1466, Italian sculptor, major innovator in Renaissance art, b. Florence. His full name was Donato di Niccolò di Betto Bardi. In his for...

existentialism

(Encyclopedia)existentialism ĕgzĭstĕnˈshəlĭzəm, ĕksĭ– [key], any of several philosophic systems, all centered on the individual and his relationship to the universe or to God. Important existentialists o...