Columbia Encyclopedia

(Encyclopedia) Amstelveen ämˈstəlvān [key], town, North Holland prov., W Netherlands, a suburb of Amsterdam. Amstelveen has light industry and agriculture. Schiphol international air...

(Encyclopedia) Gravenhurst grāˈvənhûrst [key], town, S Ont., Canada, N of Toronto. It is the gateway to the ...

(Encyclopedia) coherence, constant phase difference in two or more Waves over time. Two waves are said to be in phase if their crests and troughs meet at the same place at the same time, and the waves are out of pha...

(Encyclopedia) Bayonne bāyōnˈ [key], city (2020 pop. 71,686), Hudson co., NE N.J., on a 3-mi (4.8-km) pen...

(Encyclopedia) Pleiades plēˈədēz, plīˈ– [key], in astronomy, famous open star cluster in the constellation Taurus; cataloged as M45. The cluster consists of some 500 stars, has a diameter of 35 light-years, ...

(Encyclopedia) South Portland, port city (1990 pop. 23,163), Cumberland co., SW Maine, on the Fore River and Casco Bay, part of the Portland metropolitan area; separated from Falmouth (now Portland) as part of the t...

(Encyclopedia) Burghers bûrˈgərz [key], in the 18th cent., a party of the Secession Church of Scotland, resulting from one of the “breaches” in the history of Presbyterianism. To qualify as a burgess in certa...

(Encyclopedia) granite, coarse-grained igneous rock of even texture and light color, composed chiefly of quartz and feldspars. It usually contains small quantities of mica or hornblende, and minor accessory minerals...

(Encyclopedia) Haleakala Observatories häˌlāäˌkäläˈ [key], astronomical facilities located on the summit of Haleakala volcano, 10,023 ft (3,055 m), in Haleakala National Park, Maui island, Hawaii. Because of...

(Encyclopedia)  CE5 Compound microscope microscope, optical instrument used to increase the apparent size of an object. The electron microscope, which is not limited by the powers of optical lenses and light,...