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spectrophotometer

(Encyclopedia)spectrophotometer, instrument for measuring and comparing the intensities of common spectral lines in the spectra of two different sources of light. See photometry; spectroscope; spectrum. ...

Brentwood, towns, United States

(Encyclopedia)Brentwood. 1 Uninc. town (2020 pop. 63,399), Suffolk co., SE N.Y., on central Long Island, in the town of Islip. It is mainly residential, with ...

Brevard

(Encyclopedia)Brevard brəvärdˈ [key], town (2020 pop. 8,004), seat of Transylvania co., SW N.C., near Fr...

Zhuzhou

(Encyclopedia)Zhuzhou or Chuchow both: jo͞oˈjōˈ [key], town (1994 est. pop. 476,800), E central Hunan prov., China, on the Xiang River. It is a railroad center for lines running north-south and east-west and a ...

West New York

(Encyclopedia)West New York, town (1990 pop. 38,125), Hudson co., NE N.J., atop the Palisades across the Hudson River from New York City; settled 1790, inc. 1898. It is a residential town with some light industry, ...

Borger

(Encyclopedia)Borger bôrˈgər [key], city (2020 pop. 12,551), Hutchinson co., extreme N Tex., in the Panh...

Bouguer, Pierre

(Encyclopedia)Bouguer, Pierre pyĕr bo͞ogĕrˈ [key], 1698–1758, French mathematician and hydrographer. He made some of the first photometric measurements, calculating the intensity of the light of the sun as co...

Lorentz, Hendrik Antoon

(Encyclopedia)Lorentz, Hendrik Antoon hĕnˈdrək änˈtōn lōˈrĕnts [key], 1853–1928, Dutch physicist, a pioneer in formulating the relations between electricity, magnetism, and light. He was one of the first...

Land, Edwin Herbert

(Encyclopedia)Land, Edwin Herbert, 1909–91, American inventor and photographic pioneer. While at Harvard, Land became interested in the properties and manipulation of polarized light. He left Harvard and, in 1932...

Tunney, Gene

(Encyclopedia)Tunney, Gene (James Joseph Tunney), 1898–1978, American boxer, b. New York City. He began boxing in neighborhood clubs as a youngster. In World War I, he served in the U.S. marines and while in Pari...