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optical rotation

(Encyclopedia)optical rotation: see polarization of light. ...

Bay Village

(Encyclopedia)Bay Village, city (2020 pop. 16,163), Cuyahoga co., NE Ohio, a suburb of Cleveland; inc. 1903. It is a residential community with some light industry. ...

Colton

(Encyclopedia)Colton, city (2020 pop. 53,909), San Bernardino co., S Calif., a suburb of San Bernardino, inc. 1887. Originally a rich citrus and farm area, Colton exp...

Smith, Samuel Francis

(Encyclopedia)Smith, Samuel Francis, 1808–95, American Baptist clergyman and poet, b. Boston. He is remembered as the author of the national hymn “America,” written while he was a student at Andover Theologic...

Whitewater, city, United States

(Encyclopedia)Whitewater, city (1990 pop. 12,636), Jefferson and Walworth counties, SE Wis., in a dairy and farm area; inc. 1885. It has a foundry and plants that make various light manufactures, such as machinery ...

Duncanville

(Encyclopedia)Duncanville, city (2020 pop. 40,706), Dallas co., N Tex., a growing suburb of Dallas; est. 1882, inc. 1947. It is mostly residential with some light man...

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...

bolometer

(Encyclopedia)bolometer bōlŏmˈətər, bə– [key], instrument for detecting and measuring radiation, e.g., visible light, infrared radiation, and ultraviolet radiation, in amounts as small as one millionth of a...

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...

East Cleveland

(Encyclopedia)East Cleveland, city (2020 pop. 13,792), Cuyahoga co., NE Ohio, a suburb of Cleveland; inc. 1911. Mostly residential, it has some declining light indust...