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Wilmut, Sir Ian

(Encyclopedia) Wilmut, Sir Ian, 1944– British embryologist, b. Warwickshire, England, Ph.D. Cambridge, 1971. While doing postdoctoral research at Cambridge, he was part of the team that produced…

Black Hills

(Encyclopedia) Black Hills, rugged mountains, c.6,000 sq mi (15,540 sq km), enclosed by the Belle Fourche and Cheyenne rivers, SW S.Dak. and NE Wyo., and rising c.2,500 ft (760 m) above the…

blowfly

(Encyclopedia) blowfly, name for flies of the family Calliphoridae. Blowflies are about the same size as, and resemble, the housefly; because they are usually metallic blue or green they are also…

ring, in astronomy

(Encyclopedia) ring, in astronomy, relatively thin band of rocks and dust and ice particles that orbit around a planet in the planet's equatorial plane. All four of the giant planets in the solar…

monkeypox

(Encyclopedia) monkeypox, rare disease caused by infection with the monkeypox virus, which is related to the viruses that cause smallpox and cowpox. The symptoms of monkeypox, which typically take 1…

asthenosphere

(Encyclopedia) asthenosphereasthenosphereăsthēnˈəsfēr [key], region in the upper mantle of the earth's interior, characterized by low-density, semiplastic (or partially molten) rock material…

Mark, Gospel according to

(Encyclopedia) Mark, Gospel according to, 2d book of the New Testament. The shortest of the four Gospels and probably the earliest, it is usually thought to have been composed shortly before the…

information storage and retrieval

(Encyclopedia) information storage and retrieval, the systematic process of collecting and cataloging data so that they can be located and displayed on request. Computers and data processing…

Kent, James

(Encyclopedia) Kent, James, 1763–1847, American jurist, b. near Brewster, N.Y. He was admitted to the bar in 1785 and began practice in Poughkeepsie, N.Y. Active in the Federalist party, he served…