Columbia Encyclopedia

Search results

500 results found

McDonnell, James Smith

(Encyclopedia)McDonnell, James Smith, 1899–1980, American aviation pioneer, b. Denver, B.S. Princeton, 1921, M.S. Massachusetts Institute of Technology, 1925. He designed the Doodlebug (1929), a small monoplane, ...

parity

(Encyclopedia)parity or space parity, in physics, quantity that refers to the relationship between an object or process and the image that it can produce in a mirror. For example, any right-handed object will produ...

Sable Island, Nova Scotia, Canada

(Encyclopedia)Sable Island, low, sandy island, c.25 mi (40 km) long and 1 mi (1.6 km) wide, off N.S., Canada, ESE of Halifax, near the edge of the continental shelf. The crescent-shaped island is the exposed part o...

Leonov, Aleksei Arkhipovich

(Encyclopedia)Leonov, Aleksei Arkhipovich ŭlˌyĭksyāˈ ärkhˌyĭpôˈvyĭch [key], 1934–2019, Soviet-Russian cosmonaut and military officer. While serving as copilot of Voskhod 2 (Mar. 18–19, 1964), he beca...

More, Henry

(Encyclopedia)More, Henry, 1614–87, English philosopher, one of the foremost representatives of the school of Cambridge Platonists. His writings emphasized the mystical and theosophic phases of that philosophy, a...

Gagarin, Yuri Alekseyevich

(Encyclopedia)Gagarin, Yuri Alekseyevich yo͞oˈrē əlyĭksyāˈyəvĭch gägäˈrĭn [key], 1934–68, Russian astronaut (cosmonaut), b. near Gzhatsk, RSFSR. He was the first in history to be rocketed into orbita...

Burbidge, Margaret

(Encyclopedia)Burbidge, Margaret, 1925–2020, Anglo-American astronomer, b. England as Eleanor Margaret Peachey. Burbidge; her husband, Geoffrey Burbidge; William Fowler; and Sir Fred Hoyle showed (1956) how heavi...

plane

(Encyclopedia)plane, in mathematics, flat surface of infinite extent but no thickness. An example of a plane, or more exactly of a bounded portion of a plane, is the surface forming one face, or side, of a cube. A ...

transept

(Encyclopedia)transept trănˈsĕptˌ [key], term applied to the transverse portion of a building cutting its main axis at right angles or to each arm of such a portion. Transepts are found chiefly in churches, whe...

X Prize Foundation

(Encyclopedia)X Prize Foundation, private, nonprofit prize institute est. 1995 by commercial space entrepreneur Peter Diamandis. Based in Santa Monica, Calif., and funded by foundations and private individuals and ...