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pole, in electricity and magnetism

(Encyclopedia)pole, in electricity and magnetism, point where electric or magnetic force appears to be concentrated. A single electric charge located at a point is sometimes referred to as an electric monopole. An ...

Amundsen, Roald

(Encyclopedia)Amundsen, Roald (Roald Engelbregt Grauning Amundsen) rōˈäl äˈmo͝onsən [key], 1872–1928, Norwegian polar explorer; the first person to reach the South Pole. He served (1897–99) as first mate...

Boyd, Louise Arner

(Encyclopedia)Boyd, Louise Arner, 1887–1972, American arctic explorer, b. San Rafael, Calif. She led a series of scientific explorations on the east coast of Greenland. The expedition of 1933, sponsored by the Am...

Pole, English noble family

(Encyclopedia)Pole, English noble family. The first member of importance was William de la Pole, d. 1366, a rich merchant who became the first mayor of Hull (1332) and a baron of the exchequer (1339). His oldest so...

Pole, Richard de la

(Encyclopedia)Pole, Richard de la: see Pole, family. ...

Pole, William de la

(Encyclopedia)Pole, William de la: see Pole, family. ...

flux, magnetic

(Encyclopedia)flux, magnetic, in physics, term used to describe the total amount of magnetic field in a given region. The term flux was chosen because the power of a magnet seems to “flow” out of the magnet at ...

Bathurst Island, Canada

(Encyclopedia)Bathurst Island, 7,609 sq mi (19,707 sq km), in the Arctic Archipelago, Nunavut Territory, N Canada. It is the present site of the North Magnetic Pole. ...

Wilkins, Sir George Hubert

(Encyclopedia)Wilkins, Sir George Hubert, 1888–1958, British explorer, b. Australia. He made a number of trips to Antarctica and to the Arctic. Valuable experience gained when he accompanied Vilhjalmur Stefansson...

North, Christopher

(Encyclopedia)North, Christopher: see John Wilson. ...