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Norwegian Sea

(Encyclopedia)Norwegian Sea, part of the Atlantic Ocean, NW of Norway, between the Greenland Sea and the North Sea. It is separated from the Atlantic by a submarine ridge linking Iceland and the Faeroe Islands, and...

seafloor spreading

(Encyclopedia)CE5 Schematic model of the oceanic crust, showing seafloor spreading seafloor spreading, theory of lithospheric evolution that holds that the ocean floors are spreading outward from vast underwate...

Tharp, Marie

(Encyclopedia)Tharp, Marie, 1920–2006, American oceanographer and cartographer, grad. Univ. of Michigan (M.A. 1944). A geologist with experience in mapping, she came to Columbia Univ. as a geology research assist...

Crome, John

(Encyclopedia)Crome, John, 1768–1821, English landscape painter, b. Norwich. Crome was the principal painter of the Norwich school. He is often called Old Crome to distinguish him from his son who painted in the ...

poison ivy

(Encyclopedia)poison ivy, poison oak, and poison sumac, woody vines and trailing or erect shrubs of the family Anacardiaceae (sumac family), native to North America. They are sometimes considered as several specie...

coffin

(Encyclopedia)coffin, closed receptacle for a corpse. Its purpose is usually to protect and to aid preservation of the body, although in the past some have believed that it may confine the spirit of the deceased. B...

Shenandoah valley

(Encyclopedia)Shenandoah valley, part of the Great Valley of the Appalachians, c.150 mi (240 km) long, N Va., located between the Blue Ridge and the Allegheny mts. The valley is divided into two parts by Massanutte...

Anti-Lebanon

(Encyclopedia)Anti-Lebanon, ancient Anti-Libanus, Arabic Jabal al Sharqi, mountain range between Syria and Lebanon, rising to Mt. Hermon, 9,232 ft (2,814 m) high. Once noted for its forests of oak, pine, cypress, a...

Manhattan Project

(Encyclopedia)Manhattan Project, the wartime effort to design and build the first nuclear weapons (atomic bombs). With the discovery of fission in 1939, it became clear to scientists that certain radioactive materi...

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