Columbia Encyclopedia

Search results

500 results found

Van Vleck, John Hasbrouck

(Encyclopedia)Van Vleck, John Hasbrouck, 1899–1980, American physicist, b. Middletown, Conn., Ph.D. Harvard, 1922. As a professor at Harvard, Van Vleck developed fundamental theories on the quantum mechanics of m...

Bosanquet, Bernard

(Encyclopedia)Bosanquet, Bernard bōˈzənkĭt [key], 1848–1923, English philosopher, educated at Oxford. He lectured there (1871–81) and at St. Andrews (1903–8). His major works include A History of Aestheti...

Cantor, Georg

(Encyclopedia)Cantor, Georg gāˈôrkh känˈtôr [key], 1845–1918, German mathematician, b. St. Petersburg. He studied under Karl Weierstrass and taught (1869–1913) at the Univ. of Halle. He is known for his w...

Berthollet, Claude Louis, Comte

(Encyclopedia)Berthollet, Claude Louis, Comte klōd lwē, kôNt bĕrtōlāˈ [key], 1748–1822, French chemist. His contributions to chemistry include the analysis of ammonia and prussic acid and the discovery of ...

Kropotkin, Piotr Alekseyevich, Prince

(Encyclopedia)Kropotkin, Piotr Alekseyevich, Prince pyôˈtər əlyĭksyāˈĭvĭch krəpôtˈkĭn [key], 1842–1921, Russian geographer and anarchist. He came from a wealthy princely family and as a boy was a pag...

Mondrian, Piet

(Encyclopedia)Mondrian, Piet pēt mônˈdrēän [key], 1872–1944, Dutch painter. He studied at the academy in Amsterdam and passed through an early naturalistic phase. In 1910 he went to Paris, where the influenc...

fractal geometry

(Encyclopedia)fractal geometry, branch of mathematics concerned with irregular patterns made of parts that are in some way similar to the whole, e.g., twigs and tree branches, a property called self-similarity or s...

hypnotism

(Encyclopedia)hypnotism hĭpˈnətĭzəm [key] [Gr.,=putting to sleep], to induce an altered state of consciousness characterized by deep relaxation and heightened suggestibility. The term was originally coined by ...

cognitive psychology

(Encyclopedia)cognitive psychology, school of psychology that examines internal mental processes such as problem solving, memory, and language. It had its foundations in the Gestalt psychology of Max Wertheimer, Wo...

Thomson, Sir Joseph John

(Encyclopedia)Thomson, Sir Joseph John, 1856–1940, English physicist. From 1884 to 1919 he was Cavendish professor of experimental physics at Cambridge. J. J. Thomson was one of the founders of modern physics. Wi...