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strength of materials

(Encyclopedia)strength of materials, measurement in engineering of the capacity of metal, wood, concrete, and other materials to withstand stress and strain. Stress is the internal force exerted by one part of an e...

Baker, Ella Josephine

(Encyclopedia)Baker, Ella Josephine, 1903–1986, U.S. civil rights activist, b. Norfolk, Va. Ella Baker was an activist and organizer whose b...

crossbill

(Encyclopedia)crossbill, bird of the genus Loxia, in the finch family. Its bill, crossed at the tips, is specialized for pulling apart pine cones and picking out the seeds. Crossbills are found in the evergreen for...

Henson, Jim

(Encyclopedia)Henson, Jim (James Maury Henson), 1936–90, American puppeteer, creator of the Muppets, b. Greenville, Miss., grad. Univ. of Maryland (A.B., 1960). In 1954 he got his first job as a local television ...

Johnston Atoll

(Encyclopedia)Johnston Atoll, atoll, 2.8 sq mi (7.25 sq km), central Pacific, c.700 nautical mi (1,300 km) SW of Honolulu, central Pacific, an uninc. territory of the United States. It consists of four islands and ...

myna

(Encyclopedia)myna or mynah both: mīˈnə [key], common name for any of a number of species of Asian starlings found chiefly in India and Sri Lanka, some of which are known for vocal mimicry. Most familiar is the ...

Maeterlinck, Maurice

(Encyclopedia)Maeterlinck, Maurice môrēsˈ mätĕrlăNkˈ [key], 1862–1949, Belgian author who wrote in French. After practicing law unsuccessfully for several years, he went to Paris in 1897. He had already be...

kookaburra

(Encyclopedia)kookaburra ko͝okˈəbûrˌə [key], common name for a squat, long-tailed Australian kingfisher, Dacelo novaeguineae. It is one of the largest birds of the family Alcedinidae (kingfisher family). Beca...

turkey , in zoology

(Encyclopedia)turkey, common name for a large game and poultry bird related to the grouse and the pheasant. Its name derives from its “turk-turk” call. Turkeys are indigenous to the New World; American fossils ...

wryneck

(Encyclopedia)wryneck, common name for a primitive, unspecialized bird of the genus Jynx. The name is said to derive from their habit of twisting their necks when disturbed. Unlike other members of the family Picid...