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| {{Infobox scientist
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| | name = Sir Owen Willans Richardson
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| | image = Niels BohrUpOwenWillansRichardsonDownSolvay1927.JPG
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| | caption = Niels Bohr and Richardson (right) at the 1927 Solvay conference
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| | birth_date = {{birth date|1879|04|26|df=y}}
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| | birth_place = [[Dewsbury]], [[Yorkshire]], [[England]]
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| | death_date = {{death date and age|1959|02|15|1879|04|26|df=y}}
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| | death_place = [[Alton, Hampshire]], [[England]]
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| | nationality = [[United Kingdom]]
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| | field = [[Physics]]
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| | work_institutions = [[University of Cambridge]]<br>[[Princeton University]]<br>[[King's College London]]
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| | alma_mater = [[University of Cambridge]]<br>[[University College London|University College, London]]
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| | doctoral_advisor = [[J. J. Thomson]]
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| | doctoral_students = [[Karl Taylor Compton]]<br />[[Clinton Davisson]]
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| | known_for = [[Richardson's Law]]
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| | prizes = {{nowrap|[[Nobel Prize in Physics]] (1928)}}<br>[[Hughes Medal]] (1920)
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| }}
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| '''Sir Owen Willans Richardson''', [[Fellow of the Royal Society|FRS]] (26 April 1879 – 15 February 1959) was a [[United Kingdom|British]] [[physicist]] who won the [[Nobel Prize in Physics]] in 1928 for his work on [[thermionic emission]], which led to [[Thermionic emission#Richardson's Law|Richardson's Law]].<ref name="nobelbio">{{cite web | author=Nobel Foundation | title=Owen Willans Richardson: The Nobel Prize in Physics 1928 | url=http://www.nobel.se/physics/laureates/1928/richardson-bio.html | work=Les Prix Nobel | publisher= | year=1928 | accessdate=2007-09-17}}</ref>
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| ==Biography==
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| Richardson was born in [[Dewsbury]], [[Yorkshire]], [[England]], the only son of Joshua Henry and Charlotte Maria Richardson. He was educated at [[Batley Grammar School]] and [[Trinity College, Cambridge]], where he gained First Class Honours in Natural Sciences.<ref>{{acad|id=RCRT897OW|name=Richardson, Owen Willans}}</ref> He then got a DSc from [[University College London]] in 1904.<ref>{{acad|id=RCRT897OW|name=Richardson, Owen Willans}}</ref><ref>http://en.wikipedia.org/wiki/List_of_Nobel_laureates_affiliated_with_University_College_London</ref>
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| [[File:Owen Richardson.jpg|thumb|left|upright|Owen Willans Richardson (1928)]]
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| After graduating in 1900, he began researching the emission of electricity from hot bodies at the [[Cavendish Laboratory]] in Cambridge, and in 1902 he was made a fellow at Trinity. In 1901, he demonstrated that the current from a heated wire seemed to depend exponentially on the temperature of the wire with a mathematical form similar to the [[Arrhenius equation]]. This became known as Richardson's law: "If then the negative radiation is due to the corpuscles coming out of the metal, the saturation current ''s'' should obey the law <math>s = A\,T^{1/2}\,e^{-b/T}</math>."<ref>O. W. Richardson (1901) [http://books.google.com/books?id=QAUPAAAAIAAJ&pg=PA286#v=onepage&q&f=false "On the negative radiation from hot platinum,"] ''Philosophical of the Cambridge Philosophical Society'', '''11''' : 286-295; see especially p. 287.</ref>
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| Richardson was professor at [[Princeton University]] from 1906 to 1913, and returned to the UK in 1914 to become Wheatstone Professor of Physics at [[King's College London]], where he was later made director of research. He retired in 1944, and died in 1959.
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| He also researched the [[photoelectric effect]], the [[Gyromagnetic ratio|gyromagnetic effect]], the emission of electrons by chemical reactions, soft [[X-rays]], and the spectrum of hydrogen.
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| Richardson married Lilian Wilson, sister of his Cavendish colleague [[Harold A. Wilson (physicist)|Harold Wilson]], in 1906, and had two sons and a daughter. Richardson's own sister married the American physicist (and 1937 Nobel laureate) [[Clinton Davisson]], who was Richardson's PhD student at Princeton. After Lilian's death in 1945, he was remarried in 1948 to Henriette Rupp, a physicist.
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| Owen Williams Richardson had a son Harold Owen Richardson who specialized in Nuclear Physics and was also the Chairman, Physics Department, Bedford College, London University and later on became emeritus Professor at London University.
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| ==Honours==
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| Richardson became a Fellow of the [[Royal Society]] in 1913, and was awarded its [[Hughes Medal]] in 1920. He was awarded the Nobel Prize in Physics in 1928, "for his work on the thermionic phenomenon and especially for the discovery of the law named after him".<ref>[http://nobelprize.org/nobel_prizes/physics/laureates/1928/ Nobel prize citation, Nobel foundation website]</ref> He was knighted in 1939.
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| ==References==
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| {{reflist}}
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| ==Bibliography==
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| *{{Citation | pmid=17818864 | last=Richardson | first= | publication-date=30 September 1921 | year=1921 | title=Problems Of Physics | volume=54 | issue=1396 | periodical= | pages=283–91 | doi=10.1126/science.54.1396.283 | journal=Science | first1=OW|bibcode = 1921Sci....54..283R }}
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| *{{Citation | pmid=17830216 | last=Richardson | first= | publication-date=11 July 1913 | year=1913 | title=The Emission Of Electrons From Tungsten At High Temperatures: An Experimental Proof That The Electric Current In Metals Is Carried By Electrons | volume=38 | issue=967 | periodical= | pages=57–61 | doi=10.1126/science.38.967.57 | journal=Science | first1=OW|bibcode = 1913Sci....38...57R }}
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| *{{Citation | pmid=17800821 | last=Richardson | first= | publication-date=12 July 1912 | year=1912 | title=The Laws Of Photoelectric Action And The Unitary Theory Of Light (Lichtquanten Theorie) | volume=36 | issue=915 | periodical= | pages=57–8 | doi=10.1126/science.36.915.57-a | journal=Science | first1=OW|bibcode = 1912Sci....36...57R }}
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| *{{Citation | pmid=17792421 | last=Richardson | first= | last2=Compton | first2= KT| publication-date=17 May 1912 | year=1912 | title=The Photoelectric Effect | volume=35 | issue=907 | periodical= | pages=783–4 | doi=10.1126/science.35.907.783 | journal=Science | first1=OW|bibcode = 1912Sci....35..783R }}
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| ==External links==
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| *[http://www.nobel.se/physics/laureates/1928/richardson-lecture.pdf Owen Richardson's Nobel lecture on thermionics, December 12, 1929]
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| {{Nobel Prize in Physics Laureates 1926-1950}}
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| {{Persondata <!-- Metadata: see [[Wikipedia:Persondata]]. -->
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| | NAME = Richardson, Owen Willans
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| | ALTERNATIVE NAMES =
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| | SHORT DESCRIPTION = British physicist
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| | DATE OF BIRTH = 26 April 1879
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| | PLACE OF BIRTH = [[Dewsbury]], [[Yorkshire]], [[England]]
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| | DATE OF DEATH = 15 February 1959
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| | PLACE OF DEATH = [[Alton, Hampshire]], [[England]]
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| }}
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| {{DEFAULTSORT:Richardson, Owen Willans}}
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| [[Category:1879 births]]
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| [[Category:1959 deaths]]
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| [[Category:Academics of King's College London]]
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| [[Category:Alumni of Trinity College, Cambridge]]
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| [[Category:British Nobel laureates]]
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| [[Category:English physicists]]
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| [[Category:Fellows of King's College London]]
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| [[Category:Fellows of the Royal Society]]
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| [[Category:Knights Bachelor]]
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| [[Category:Nobel laureates in Physics]]
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| [[Category:People educated at Batley Grammar School]]
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| [[Category:People from Dewsbury]]
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| [[Category:Princeton University faculty]]
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| [[Category:Royal Medal winners]]
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| [[Category:Presidents of the Physical Society]]
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| [[Category:Theoretical physicists]]
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| [[Category:English Nobel laureates]]
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Hello colleague. Let me introduce ourselves. I am Lauren Mick and I'm comfortable are incredibly important . use complete name. His wife and him live in Guam. The thing she adores most is perform with dogs and she would never give it up. She works like a stock control and order filler. He's been engaged on his website for a while now. Take a look here: http://www.quantumpendants.org/
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