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orbit

(Encyclopedia)CE5 Important points in a planet's orbit as seen from the earth orbit, in astronomy, path in space described by a body revolving about a second body where the motion of the orbiting bodies is domi...

Deaton, Angus Stewart

(Encyclopedia)Deaton, Angus Stewart, 1945–, British-American economist, b. Edinburgh, Scotland, Ph.D Cambridge, 1974. He was a professor of econometrics at the Univ. of Bristol, England, from 1976 to 1983. In 198...

Hernández Alvarado, Juan Orlando

(Encyclopedia)Hernández Alvarado, Juan Orlando, 1968–, Honduran political leader, president of Honduras (2014–21). A member of the co...

surfing

(Encyclopedia)surfing, sport of gliding on a breaking wave. Surfers originally used long, cumbersome wooden boards but now ride lightweight synthetic boards that allow a greater degree of maneuverability. Boards ar...

Tinbergen, Nikolaas

(Encyclopedia)Tinbergen, Nikolaas, 1907–88, Anglo-Dutch zoologist, b. Netherlands. He received his Ph.D. in 1932 from the Univ. of Leiden, where he became professor of zoology in 1947. In 1949 he joined the facul...

Shotwell, James Thomson

(Encyclopedia)Shotwell, James Thomson, 1874–1965, Canadian-American historian, b. Strathroy, Ont. A teacher of history at Columbia from 1900 and professor from 1908 to 1942, Shotwell also worked tirelessly to pro...

Siberian husky

(Encyclopedia)Siberian husky, breed of medium-sized, muscular working dog whose origins date back thousands of years in Siberia. It stands from 20 to 231⁄2 in. (50.8–59.7 cm) high at the shoulder and weighs fro...

Death, Dance of

(Encyclopedia)Death, Dance of, or danse macabre däns məkäˈbrə, –bər, dăns [key], originally a 14th-century morality poem. The poem was a dialogue between Death and representatives of all classes from the P...

fiber optics

(Encyclopedia)fiber optics, transmission of digitized messages or information by light pulses along hair-thin glass or plastic fibers. Each fiber is surrounded by a cladding having a high index of refractance so th...

Frank, Robert

(Encyclopedia)Frank, Robert, 1924–2019, Swiss-American photographer and filmmaker, b. Zürich. He immigrated to the United States in 1947 and became a citizen in 1963. One of the 20th century's most influential p...