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Patchogue

(Encyclopedia)Patchogue păchˈägˌ, –ôgˌ [key], village (1990 pop. 11,060), Suffolk co., SE N.Y., on Long Island, on Great South Bay; inc. 1893. A residential area that is popular in the summer months, it has...

Arvada

(Encyclopedia)Arvada ärvădˈə [key], city (2020 pop. 124,402), Jefferson and Adams counties, N central Colo., a suburb of Denver; inc. 1904. Primarily residential, Arvada has some li...

Strongsville

(Encyclopedia)Strongsville, city (1990 pop. 35,308), Cuyahoga co., NE Ohio, a residential suburb of Cleveland; settled 1816, inc. 1927. There is text-book publishing and light manufacturing. The city grew significa...

Whitehead, William

(Encyclopedia)Whitehead, William, 1715–85, English poet and playwright. He wrote several plays based on ancient Greek models, including Creusa, Queen of Athens (1754). Whitehead was appointed poet laureate in 175...

Southport

(Encyclopedia)Southport, city (1991 pop. 88,596), Sefton metropolitan district, NW England, in the Greater Liverpool metropolitan area. A seaside resort with light industries, it is home to the Atkinson Art Gallery...

Ravenna, city, United States

(Encyclopedia)Ravenna rĭvănˈə, rəvĕnˈə [key], city (1990 pop. 12,069), seat of Portage co., NE Ohio, in a lake and farm area; settled 1799, inc. 1852. Named after the Italian city, Ravenna has diverse light...

Sarcelles

(Encyclopedia)Sarcelles särsĕlˈ [key], city (1990 pop. 57,121), Val-d'Oise dept., N central France. Mostly residential, it has some light industry. A church dating partly from the 12th cent. and partly from the ...

infrared radiation

(Encyclopedia)infrared radiation, electromagnetic radiation having a wavelength in the range from c.75 × 10−6 cm to c.100,000 × 10−6 cm (0.000075–0.1 cm). Infrared rays thus occupy that part of the electrom...

ultraviolet radiation

(Encyclopedia)ultraviolet radiation, invisible electromagnetic radiation between visible violet light and X rays; it ranges in wavelength from about 400 to 4 nanometers and in frequency from about 1015 to 1017 hert...

telescope

(Encyclopedia)CE5 Mirror arrangements for a reflecting telescope telescope, traditionally, a system of lenses, mirrors, or both, used to gather light from a distant object and form an image of it. Traditional o...