Columbia Encyclopedia

Search results

464 results found

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...

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...

embroidery

(Encyclopedia)embroidery, ornamental needlework applied to all varieties of fabrics and worked with many sorts of thread—linen, cotton, wool, silk, gold, and even hair. Decorative objects, such as shells, feather...

Achebe, Chinua

(Encyclopedia)Achebe, Chinua chĭnˈwä ächāˈbā [key], 1930–2013, Nigerian writer, b. Albert Chinualumogu Achebe. A graduate of University College, Ibadan (1953), Achebe, an Igbo who wrote in English, is one ...

Victor Emmanuel II

(Encyclopedia)Victor Emmanuel II, 1820–78, king of Sardinia (1849–61) and first king of united Italy (1861–78). He fought in the war of 1848–49 against Austrian rule in Lombardy-Venetia and ascended the thr...

Bernini, Giovanni Lorenzo

(Encyclopedia)Bernini, Giovanni Lorenzo or Gianlorenzo jōvänˈnē lōrĕnˈtsō, jänlōrĕnˈtsō bĕrnēˈnē [key], 1598–1680, Italian sculptor and architect, b. Naples. He was the dominant figure of the Ita...

Belgium

(Encyclopedia)CE5 Belgium bĕlˈjəm [key], Du. België, Fr. La Belgique, officially Kingdom of Belg...