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Chernihiv

(Encyclopedia)Chernihiv chĭrnyēˈgəf [key], city (1990 est. pop. 296,000), capital of Chernihiv region, in N Ukraine, on the Desna River. It is a rail junction, a river port, and an air and highway transport hub...

Los Alamos

(Encyclopedia)Los Alamos lôs ălˈəmōsˌ, lŏs [key], uninc. town (1990 pop. 11,455), seat of Los Alamos co., N central N.Mex. It is on a long mesa extending from the Jemez Mts. The U.S. government chose the sit...

Cameron, Richard

(Encyclopedia)Cameron, Richard kămˈərən [key], 1648–1680, Scottish leader of the Cameronians, an extreme group of Covenanters. In 1672, under the influence of the open-air preacher John Welch, he became a Cov...

bull-roarer

(Encyclopedia)bull-roarer, an instrument consisting of slit board or chamber attached to a cord. When swung around in the air, it emits a deep, vibrant, “whirrrrrr”-like sound. The mythology of some Native Sout...

airline industry

(Encyclopedia)airline industry, the business of transporting paying passengers and freight by air along regularly scheduled routes, typically by airplanes but also by helicopter. Ferdinand Graf von Zeppelin set up ...

flight

(Encyclopedia)CE5 Aircraft motions and control surfaces: Yaw, or motion to the left or right, is controlled by the rudder. Pitch, or climbing or dropping, is controlled by the elevators, which move in the same d...

Midland Canal

(Encyclopedia)Midland Canal, Ger. Mittelland Kanal, artificial waterway system of Germany, extending eastward c.200 mi (320 km) along the North German plain from the Dortmund-Ems Canal, Germany, to Magdeburg, Germa...

Nipigon, Lake

(Encyclopedia)Nipigon, Lake nĭpˈĭgŏn [key], c.1,870 sq mi (4,840 sq km), central Ont., Canada. It has many islands. Its outlet, the Nipigon River (40 mi/64 km long) flows south, past the logging town of Nipigon...

Port Glasgow

(Encyclopedia)Port Glasgow, town (1991 pop. 22,636), Inverclyde, W Scotland, on the Firth of Clyde. Its dry dock, built in 1762, was one of the first of its kind in Scotland. It was founded in 1668 as a port for Gl...

temperature inversion

(Encyclopedia)temperature inversion, condition in which the temperature of the atmosphere increases with altitude in contrast to the normal decrease with altitude. When temperature inversion occurs, cold air underl...