Columbia Encyclopedia

(Encyclopedia) Riemann, Bernhard (Georg Friedrich Bernhard Riemann) gāˈôrk frēˈdrĭkh bĕrnˈhärt rēˈmän [key], 1826–66, German mathematician. He studied at the universities of Göttingen and Berlin and w...

(Encyclopedia) Anaximander ənăkˌsĭmănˈdər [key], c.611–c.547 b.c., Greek philosopher, b. Miletus; pupil of Thales. He made the first attempt to offer a detailed explanation of all aspects of nature. Anaxima...

(Encyclopedia)  CE5 Meninges: Section of spine showing meningeal layers meninges mĭnĭnˈjēz [key], three membranous layers of connective tissue that envelop the brain and spinal cord (see nervous system). The ...

(Encyclopedia) atrium āˈtrēəm [key], term for an interior court in Roman domestic architecture and also for a type of entrance court in early Christian churches. The Roman atrium was an unroofed or partially roo...

(Encyclopedia) Biosphere 2, privately funded ecological research project in which eight people lived sealed in a 3.15-acre (1.28-hectare) structure for two years (Sept. 26, 1991–Sept. 26, 1993). Located in Oracle,...

(Encyclopedia) Douhet, Giulio jo͞oˈlyō do͞oāˈ [key], 1869–1930, Italian military officer and early advocate of airpower. He was an early supporter of strategic bombing and the military superiority of air for...

(Encyclopedia) Bolyai bōˈlyoi [key], family of Hungarian mathematicians. The father, Farkas, or Wolfgang, Bolyai, 1775–1856, b. Bolya, Transylvania, was educated in Nagyszeben from 1781 to 1796 and studied in Ge...

(Encyclopedia) Brancusi, Constantin bränkyo͞oˈzē, Rom. bränˈko͞osh [key], 1876–1957, Romanian sculptor. Brancusi is considered one of the foremost of modern artists. In 1904 he went to Paris, where he worke...

(Encyclopedia) chronicle, official record of events, set down in order of occurrence, important to the people of a nation, state, or city. Almanacs, The Congressional Record in the United States, and the Annual Regi...

(Encyclopedia) Kertész, André kĕrtĕshˈ [key], 1894–1985, American photographer, b. Budapest. His black-and-white modernist photographs often capture small, lyrical, and emotionally resonant moments while also...