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air mass

(Encyclopedia)air mass, large body of air within the earth's atmosphere in which temperature and humidity, although varying at different heights, remain similar throughout the body at any one height. Air masses for...

Bouvet Island

(Encyclopedia)Bouvet Island bo͞ovāˈ [key], uninhabited volcanic island, c.58 sq mi (150 sq km), S Atlantic Ocean, about 1,600 mi (2,576 km) SW of the Cape of Good Hope. A Norwegian possession since 1928, Bouvet ...

root crop

(Encyclopedia)root crop, vegetable cultivated chiefly for its edible roots, e.g., the beet, turnip, mangel-wurzel, carrot, and parsnip. All root crops have a large water content and grow best in deeply cultivated s...

Victoria Island

(Encyclopedia)Victoria Island, c.81,930 sq mi (212,200 sq km), part of the Arctic Archipelago, Northwest Territories and Nunavut, N Canada; third largest island of Canada. On the southeast coast is Cambridge Bay, a...

anticyclone

(Encyclopedia)anticyclone, region of high atmospheric pressure; anticyclones are commonly referred to as “highs.” The pressure gradient, or change between the core of the anticyclone and its surroundings, combi...

Hadad, in ancient Middle Eastern religions

(Encyclopedia)Hadad āˈdăd [key], ancient weather god of Semitic origin, worshiped in Babylonia and Assyria. Important throughout the Middle East, he was worshiped under many names. As god of the storm, he was, a...

Viscount Melville Sound

(Encyclopedia)Viscount Melville Sound, 250 mi (402 km) long and 100 mi (161 km) wide, arm of the Arctic Ocean, Northwest Territories and Nunavut, Canada, between Victoria and Prince of Wales islands on the south an...

sailing

(Encyclopedia)sailing, as a sport, the art of navigating a sailboat for recreational or competitive purposes. Although sailing as a means of transportation predates history, sport sailing—or yachting—seems to...

Barnard, Edward Emerson

(Encyclopedia)Barnard, Edward Emerson, 1857–1923, American astronomer, b. Nashville, Tenn., grad. Vanderbilt Univ., 1887. From 1887 to 1895 he was astronomer at Lick Observatory in California, and from 1895 he wa...

Pierce, John

(Encyclopedia)Pierce, John, 1910–2002, American electrical engineer, b. Des Moines, Iowa, grad. California Institute of Technology (Ph.D. 1936). Pierce worked at the Bell Telephone Laboratories, where he proposed...