Columbia Encyclopedia

(Encyclopedia) permafrost, permanently frozen soil, subsoil, or other deposit, characteristic of arctic and some subarctic regions; similar conditions are also found at very high altitudes in mountain ranges. In 196...

(Encyclopedia) Simpson, Sir George, 1792?–1860, governor of the Hudson's Bay Company in Canada (1821–56), b. Scotland. In 1820 he was sent by the Hudson's Bay Company to Canada, where he took charge of the impor...

(Encyclopedia) Bakunin, Mikhail mēkhəyēlˈ bəko͞oˈnyĭn [key], 1814–76, Russian revolutionary and leading exponent of anarchism. He came from an aristocratic family but entered upon revolutionary activities ...

(Encyclopedia) Samara səmäˈrə [key], formerly Kuybyshev, city (1989 pop. 1,254,000), capital of its region, E central European Russia, on the left bank of the Volga and at the mouth of the Samara River. It is a ...

(Encyclopedia) Altaic ăltāˈĭk [key], subfamily of the Ural-Altaic family of languages (see Uralic and Altaic languages). Some scholars still consider Altaic an independent linguistic family. Spoken by over 130 m...

(Encyclopedia) crater, circular, bowl-shaped depression on the earth's surface. (For a discussion of lunar craters, see moon.) Simple craters are bowl-shaped with a raised outer rim. Complex craters have a raised ce...

(Encyclopedia) Ledyard, John lĕdˈyərd [key], 1751–89, American adventurer, b. Groton, Conn. He studied at Dartmouth for year, but left college to ship as a sailor. In 1776 he joined Capt. James Cook's last expe...

(Encyclopedia) Kamenev, Lev Borisovich lyĕf bərēˈsəvĭch käˈmĭnyĭf [key], 1883–1936, Soviet Communist leader. His original name was Rosenfeld. He joined (1901) the Social Democratic party and sided with t...

(Encyclopedia) Bering Strait, c.55 mi (90 km) wide, between extreme NE Asia and extreme NW North America, connecting the Arctic Ocean and the Bering Sea. It is usually completely frozen over from October to June. Th...

(Encyclopedia) Leacock, Richard, 1921–2011, Anglo-American filmmaker, b. London. A key figure in the development of cinéma vérité, he also helped create the camera and sound equipment that made the style possib...