- Fraunhofer('s) lines
- Fraunhofer('s) linesDark lines crossing the spectrum, from the Bavarian optician Joseph von Fraunhofer (1787–1826)● line
Useful english dictionary. 2012.
Fraunhofer('s) lines
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Fraunhofer's lines — Fraunhofer( s) lines Dark lines crossing the spectrum, from the Bavarian optician Joseph von Fraunhofer (1787–1826) • • • Main Entry: ↑line … Useful english dictionary
fraunhofer lines — n.pl. the dark lines visible in solar and stellar spectra. Etymology: J. von Fraunhofer, Bavarian physicist d. 1826 * * * ˈfrau̇nˌhōfə(r) noun Usage: usually capitalized F Etymology: after Joseph von Fraunhofer died 1826 Bavarian optician and… … Useful english dictionary
Fraunhofer, Joseph von — • Optician (1787 1826) Catholic Encyclopedia. Kevin Knight. 2006. Fraunhofer, Joseph von Joseph von Fraunhofer … Catholic encyclopedia
Fraunhofer lines — Fraun ho*fer lines prop. n. pl.. (Physics.) The lines of the spectrum; especially and properly, the dark lines of the solar spectrum, so called because first accurately observed and interpreted by Fraunhofer, a German physicist. [1913 Webster] … The Collaborative International Dictionary of English
Fraunhofer lines — [froun′hō΄fər] n. [after Joseph von Fraunhofer (1787 1826), Bavarian optician, who first mapped them accurately] the dark lines visible in the spectrum of the sun or a star … English World dictionary
Fraunhofer — may refer to:*Joseph von Fraunhofer (1787–1826), German physicist *Fraunhofer (crater), a lunar crater *Fraunhofer Society (Fraunhofer Gesellschaft), a research society, owner of mp3 technology *Fraunhofer diffraction, far field diffraction… … Wikipedia
Fraunhofer lines — In physics and optics, the Fraunhofer lines are a set of spectral lines named for the German physicist Joseph von Fraunhofer (1787–1826). The lines were originally observed as dark features (absorption lines) in the optical spectrum of the… … Wikipedia
Fraunhofer lines — Astron. the dark lines of the solar spectrum. [1830 40; named after J. von FRAUNHOFER] * * * In astronomical spectroscopy, dark lines in a star s spectrum caused by selective absorption of its radiation at specific wavelengths by the various… … Universalium
Fraunhofer , Josef von — (1787–1826) German physicist and optician Fraunhofer, whose family was in the optical trade, was born in Straubing (now in Germany); he was apprenticed to an optician in Munich after his parents died. He subsequently moved to the Utzschneider… … Scientists
Fraunhofer lines — Fraun·ho·fer lines frau̇n .hōf ər n pl the dark lines in the spectrum of sunlight Fraunhofer Joseph von (1787 1826) German optician and physicist. Fraunhofer was a master theoretical optician as well as an expert maker of glass lenses and… … Medical dictionary
