Columbia Encyclopedia

(Encyclopedia) oilbird, common name for an owllike, cave-dwelling bird, Steatornis caripensis, belonging to the family Steatornithidae. It spends its days in dark caves, maneuvering by means of a batlike sonar devic...

(Encyclopedia) mayfly, any insect of the order Ephemeroptera, so named because the adults live for a short time, often only a single day, during which they molt twice, mate, and lay their eggs in freshwater. The adu...

(Encyclopedia) Achaemenids ăkˌəmĕnˈĭdz [key], dynasty of ancient Persia. They were descended presumably from one Achaemenes, a minor ruler in a mountainous district of SW Iran. His successors, when Elam declin...

(Encyclopedia) Alexie, Sherman (Sherman Joseph Alexie, Jr.), 1966–, Native American writer, b. Wellpinit, Spokane Indian Reservation, E Wash., studied Gonzaga Univ. and Washington State Univ. (B.A., 1991). Alexie ...

(Encyclopedia) Aldrin, Buzz ôlˈdrĭn [key] (Edwin Eugene Aldrin, Jr.), 1930–, American astronaut, b. Montclair, N.J. After graduating from West Point (1951), Aldrin joined the U.S. air force and flew 66 combat m...

(Encyclopedia) smart weapon, missile or steerable bomb equipped with a laser, television, or satellite guidance system. Smart weapons, which use guidance systems that rely on external assistance, are distinguished f...

(Encyclopedia) wind tunnel, apparatus for studying the interaction between a solid body and an airstream. A wind tunnel simulates the conditions of an aircraft in flight by causing a high-speed stream of air to flow...

(Encyclopedia) Provensen, Alice, 1918–2018, b. Chicago as Alice Rose Twitchell, and Martin Provensen prōˈvĕnsĕn [key], 1916–87, b. Chicago, American children's book authors and illustrators. They both attend...

(Encyclopedia) tody tōˈdē [key], common name for small (3–4 in./9–10 cm) West Indian birds of the family Todidae, comprising the single genus Todus. Bright green above with red throats, they are forest birds ...

(Encyclopedia) Zog zŭk [key], 1895–1961, king of Albania. Originally Ahmet Muhtar Bej Zogolliu (later Albanianized to Zogu), he came from a Muslim family and served in the Austrian army in World War I. He became ...