- Hertz effect
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the effect of ultraviolet radiation in lowering the sparking voltage across a spark gap: an example of photoelectric effect.[after H. R. HERTZ]
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Universalium. 2010.
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Universalium. 2010.
Hertz effect — Physics. the effect of ultraviolet radiation in lowering the sparking voltage across a spark gap: an example of photoelectric effect. [after H. R. HERTZ] … Useful english dictionary
Hertz , Heinrich Rudolf — (1857–1894) German physicist Hertz came from a prosperous and cultured Hamburg family. In 1875 he went to Frankfurt to gain practical experience in engineering and after a year of military service (1876–77) spent a year at the University of… … Scientists
Photoelectric effect — The photoelectric effect is a quantum electronic phenomenon in which electrons are emitted from matter after the absorption of energy from electromagnetic radiation such as x rays or visible light.cite book | title = Physics for Scientists… … Wikipedia
Heinrich Hertz — Infobox Scientist name = Heinrich Rudolf Hertz image width = 230px birth date = birth date|1857|2|22|mf=y birth place = Hamburg, Germany residence = Germany nationality = German death date = death date and age|1894|1|1|1857|2|22|mf=y death place … Wikipedia
photoelectric effect — Physics. the phenomenon in which the absorption of electromagnetic radiation, as light, of sufficiently high frequency by a surface, usually metallic, induces the emission of electrons from the surface. Also called photoemission. [1890 95] * * *… … Universalium
Franck-Hertz experiment — The Franck Hertz experiment was a physics experiment that provided support for the Bohr model of the atom, a precursor to quantum mechanics. In 1914, the German physicists James Franck and Gustav Ludwig Hertz sought to experimentally probe the… … Wikipedia
Low Frequency Effect — Ein LFE Kanal („Low Frequency Effect“ bei Dolby oder „Low Frequency Enhancement“ bei DTS) wird bei verschiedenen Mehrkanal Tonsystemen (z. B. 5.1) dazu verwendet, niederfrequente Töne, die vom menschlichen Ohr nicht lokalisiert werden können, zu… … Deutsch Wikipedia
Scientific phenomena named after people — This is a list of scientific phenomena and concepts named after people (eponymous phenomena). For other lists of eponyms, see eponym. NOTOC A* Abderhalden ninhydrin reaction Emil Abderhalden * Abney effect, Abney s law of additivity William de… … Wikipedia
electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… … Universalium
spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… … Universalium