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Topic: George Eugene Uhlenbeck

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	George Eugene Uhlenbeck - Wikipedia, the free encyclopedia
		George Eugene Uhlenbeck (December 6, 1900 – October 31, 1988) was a U.S. Indonesian-born) physicist.
		He introduced the concept of electron spin, which posits that electrons rotate on an axis, with Samuel Abraham Goudsmit, for which they were awarded the Max Planck medal in 1964.
		Uhlenbeck was also awarded the Wolf Prize in Physics in 1979.
	www.wikipedia.org /wiki/George_Uhlenbeck (99 words)

	Uhlenbeck (Site not responding. Last check: 2007-11-04)
		Now Uhlenbeck was doubly glad to be able to make the move, firstly because he had always wanted to study physics and mathematics at university, but also because he felt he did not have the dexterity to undertake a practical subject.
		Uhlenbeck had a very significant influence on statistical mechanics and brought an area which was very varied and disjointed into some sort of structured whole.
		Uhlenbeck's papers are all relatively short and stand out by their conciseness, precision, and clarity, finely honed to a deeper understanding of a basic problem in statistical physics.
	www-history.mcs.st-andrews.ac.uk /history/Mathematicians/Uhlenbeck.html (1807 words)

	Parenteel van Arndt in der Eulenbeck
		George Samuel is overleden op vrijdag 2 maart 1877 in
		Uhlenbeck gepubliceerd in het Tijdschrift van de Maatschappij der Nederlandsche letterkunde, althans in de eerste vijf en twintig deelen, in deel 25 (1905)een uitvoerig artikel: Aanteekeningen bij Gotische etymologien; ook menig artikel in Paul und Brennes Beiträge zum Geschichte der deutscher Sprache und Literatur; menige recensie in Museum, maandblad voor philologie en geschiedenis.
		Uhlenbeck was van 1949 tot 1983 hoogleraar Javaans aan deze universiteit, en van 1958 tot 1979 ook hoogleraar Algemene Taalwetenschap.Na zijn studie indologie in Leiden en Indisch recht in Utrecht werd Uhlenbeck in 1939 als taalambtenaar naar Nederlands-Indië uitgezonden als hoofd van de sectie Javaans bij het Bureau voor de Volkslectuur.
	home.wanadoo.nl /pietgenee/genuhlenbeck.htm (13781 words)

	George Eugene Uhlenbeck (Site not responding. Last check: 2007-11-04)
		Uhlenbeck's doctoral work was of fundamental importance in quantum mechanics, systematising statistical notions and proposing electron spin.
		As well as fundamental work on quantum mechanics, Uhlenbeck worked on atomic structure and the kinetic theory of matter.
		Uhlenbeck was always very keen on clarity and a logical approach to all problems.
	physics.rug.ac.be /fysica/geschiedenis/mathematicians/uhlenbeck.html (161 words)

	Encyclopedia: George Eugene Uhlenbeck (Site not responding. Last check: 2007-11-04)
		George Eugene Uhlenbeck (December 6, 1900 –; October 31, 1988) was a U.S. Indonesian-born) physicist.
		December 6 is the 340th day (341st on leap years) of the year in the Gregorian calendar.
		Samuel Goudsmit (1902–1978) was a Dutch-American physicist famous for jointly proposing the concept of electron spin with George Eugene Uhlenbeck.
	www.nationmaster.com /encyclopedia/George-Eugene-Uhlenbeck (366 words)

	The Rockefeller Archive Center - Papers of Individuals - Rockefeller University
		Photograph Collection: No Biography: George Eugene Uhlenbeck (1900-1988) was a theoretical physicist best known for his contributions to the study of atomic structure, quantum and statistical mechanics, the kinetic theory of matter, and nuclear physics.
		Uhlenbeck graduated from the State University of Leiden, The Netherlands in 1920 and continued there with graduate study in the theory of atomic spectra under Paul Ehrenfest, earning his master's degree in 1922 and his Ph.D. in 1927.
		Uhlenbeck's subsequent research focused on the statistical and kinetic theory of the equilibrium and non-equilibrium phenomena of physical systems.
	archive.rockefeller.edu /collections/individuals/ru (4229 words)

	Dictionary of Meaning www.mauspfeil.net
		'''George Eugene Uhlenbeck''' (December 6, 1900 – October 31, 1988) was a United States of America U.S. Indonesia Indonesian-born) physicist.
		He introduced the concept of electron spin (physics) spin, which posits that electrons rotate on an axis, with Samuel Abraham Goudsmit, for which they were awarded the Max Planck medal in 1964.
		There you find a list of all editors and the possibility to edit the original text of the article George Eugene Uhlenbeck.
	www.mauspfeil.net /George_Eugene_Uhlenbeck.html (143 words)

	BIOGRAPHIES OF PERSONS IN COPENHAGEN (Site not responding. Last check: 2007-11-04)
		Born in Odessa, Ukraine, George Gamow moved to Göttingen in 1928, where he explained, with the aid of quantum theory, the different lifetimes of radioactive elements.
		With his 1927 doctoral thesis, under James Franck, on resonance fluorescence in mercury, he moved to Berlin and with George Gamow and others did important work on alpha particle decay and absorption And he put forward the idea that nuclear reactions are the source of stellar energy.
		George Eugene Uhlenbeck’s most remembered achievement is the discovery and elucidation, with Samuel Goudsmit, of electron spin.
	northonline.sccd.ctc.edu /knowing/lecsite/Frayn/bios.html (8258 words)

	Uhlenbeck, George Eugene -- Encyclopædia Britannica
		More results on "Uhlenbeck, George Eugene" when you join.
		Settled by Eugene Skinner in 1846, the city was laid out on Willamette bottomland in 1852.
		In a dramatization, George Washington recalls crossing the Delaware, spending the winter at Valley Forge and defeating the British at the Battle of Yorktown.
	secure.britannica.com /eb/article?tocId=9074111 (810 words)

	References for Uhlenbeck (Site not responding. Last check: 2007-11-04)
		T S Kuhn and G E Uhlenbeck, Interviews of Uhlenbeck by Kuhn in 1962 and 1963, The Niels Bohr Archives (Copenhagen, unpublished).
		A Pais, George Uhlenbeck and the discovery of electron spin, Physics today 42 (12) (1989), 34-40.
		A Pais, George Eugene Uhlenbeck, in The genius of science (Oxford, 2000), 288-325.
	www.gap-system.org /~history/Printref/Uhlenbeck.html (62 words)

	[No title] (Site not responding. Last check: 2007-11-04)
		George Augustus Constantine Phipps, 2nd Marquess of Normanby
		George Islay MacNeill Robertson, Baron Robertson of Port Ellen
		George Nathaniel Curzon, 1st Marquess Curzon of Kedleston
	www.encyclopedia-1.com /g/ge/index.html (141 words)

	Galileo - Giornale di scienza e problemi globali
		Nel 1923 pubblica invece una serie di lavori sulla meccanica analitica, in particolare l'articolo Dimostrazione che in generale un sistema meccanico normale è quasi ergodico che viene molto apprezzato da Paul Ehrenfest, uno dei maggiori esperti, con Einstein, di meccanica statistica e il cui lavoro ha all'epoca profonde implicazioni per i fondamenti della meccanica.
		Ehrenfest consegna a George Eugene Uhlenbeck, che si recava a Roma, una lettera per Fermi nella quale gli pone un certo numero di domande.
		Eugene P. Wigner commenta a proposito: "Nessuno che non conoscesse a fondo tutte le complicazioni della teoria avrebbe potuto scriverlo e nessuno avrebbe potuto evitare più abilmente tutte le complicazioni".
	www.galileonet.it /Dossier/doss24/dossier24_2.html (2833 words)

	Sketching the History of Statistical Mechanics and Thermodynamics (Site not responding. Last check: 2007-11-04)
		Later, with George Eugene Uhlenbeck (1900-1988), half-integer quantum numbers are introduced in the theory of the hydrogen atom.
		Discovery of the lambda point of helium at which it becomes a superfluid (so-named in 1941) at 2.2°K. George David Birkhoff (1884-1944) proves the general ergodic theoreom.
		George Allen Baker, Jr (1932-) found a method of determining the singularities at the critical point via series expansions of Lenz-Ising models.
	history.hyperjeff.net /statmech.html (6717 words)

	Spin (Site not responding. Last check: 2007-11-04)
		The existence of spin was suggested by the Dutch-born American physicists Samuel Abraham Goudsmit and George Eugene Uhlenbeck in 1925.
		The two physicists noted that certain features of the atomic spectra could not be explained by the quantum theory in use at the time.
		By adding an additional quantum number-the spin of the electron-Goudsmit and Uhlenbeck were able to provide a more complete explanation of atomic spectra.
	www.cartage.org.lb /en/themes/Sciences/Physics/Atomicphysics/spin/spin.html (309 words)

	-Chemistry Timetable (Site not responding. Last check: 2007-11-04)
		In 1925, Samual A. Goudsmit and George E. Uhlenbeck postulated that the electron had an intrinsic angular momentum, independent of its orbital characteristics.
		George Eugene Uhlenbeck [Dutch-American: 1900- __] and Samuel Abraham Goudsmit [American: 1902- 1978] added more elucidation to the Periodic Law of the elements electron configurations (building on data from the 1921 Stern-Gerlach experiment), with their discovery of the spin of the electron.
		In 1994 Nobel Prize in Chemistry was awarded to George Andrew Olah, professor, chemistry, University of Southern Californai, USA, for his work in developing a technique to disassemble and rebuild hydrocarbons.
	www.rose.edu /faculty/gjackson/CHEM-TAB.HTM (10996 words)

	Physik: Zeittafel
		Georg Simon Ohm (1789-1854) formuliert das nach ihm benannte Gesetz.
		Georg Hermann Quincke (1834-1924) erfindet das nach ihm benannte Interferenzrohr zur Messung der Wellenlängen akustischer Wellen.
		George Johnstone Stoney (1826-1911) vermutet, dass Elektrizität aus Elementarteilchen besteht.
	szallies.de /Zeittafel.htm (4616 words)

	Magnetic Moment (Site not responding. Last check: 2007-11-04)
		In 1915, W.J. de Haas (1900's) and Albert Einstein (1879-1955) established a link between magnetism and angular momentum with an experiment involving the rotation of an iron cylinder in a magnetic field.
		In 1925 Samuel Abraham Goudsmit (1902-1978) and George Eugene Uhlenbeck (1900-1988) introduced the concept of electron spin, and determined the magnet moment of the electron.
		Paul Dirac (1902-1984) used the concept to electronic spin to correct a deficiency in Schrodinger's equation.
	www.tompotter.us /magmom.html (244 words)

	Uhlenbeck
		Uhlenbeck bought a copy of Boltzman's Lectures on gas dynamics and he studied this in his own time, continuing the way of learning which he had adopted at school.
		Uhlenbeck's parents didn't find it easy to provide the necessary financial support for him at university.
		The two quickly became friends and exchanged ideas, particularly on Oskar Klein's ideas about five dimensional relativity.
	homepages.compuserve.de /thweidenfeller/mathematiker/Uhlenbeck.htm (1773 words)

	[No title]
		Enuncia la idea de que el cuarto número cuántico corresponde al spin del electrón, que puede asimilarse a un momento rotatorio del electrón sobre si mismo, y que solo puede tener dos direcciones "arriba" y "abajo".
		George Eugene Uhlenbeck (1900-1988) y Sammuel Abrahan Goudsmit (1902
		Abdus Salam (1926-1996) y Eugene Paul Wigner (1902-1995).
	cabierta.uchile.cl /revista/13/articulos/13_2 (7472 words)

	FAQs History of MRI (Site not responding. Last check: 2007-11-04)
		The year after, George Eugene Uhlenbeck and Samuel A. Goudsmit introduced the concept of the spinning electron.
		Pauli, Uhlenbeck, and Goudsmit went to the United States to work.
		Actual in vivo NMR spectroscopy took off in Oxford from 1974, with the group of Rex E. Richards and George K. Radda.
	www.spectroscopynow.com /Spy/Directories/Hit_Counter/1,1156,17972-0-0,00.html (4197 words)

	Spin (Site not responding. Last check: 2007-11-04)
		In 1922 Otto Stern (1888-1969) and Gerlach discovered that a beam of sliver atoms splits in a magnetic field.
		In 1925 George Eugene Uhlenbeck (1900-1988) and Samuel Abraham Goudsmit (1902-1978) proposed that the electron has an intrinsic angular momentum (spin).
		In 1927 Wolfgang Pauli(1900-1958) introduces spin into quantum mechanics to explain the electron configuration of atoms.
	www.tompotter.us /spin.html (409 words)

	Emil Jan Konopinski [Pictures and Photos of]
		Konopinski C1 Emil Jan Konopinski, Julian Seymour Schwinger, George Eugene Uhlenbeck
		Enrico Fermi, Emil Jan Konopinski, George Eugene Uhlenbeck
		Uhlenbeck George C5 copyright © 2003 American Institute of Physics
	www.aip.org /history/esva/catalog/esva/Konopinski_Jan.html (78 words)

	1925 - Wikipedia
		Samuel Goudsmit und George Eugene Uhlenbeck führen hypothetisch den Spin als Erklärung der Feinstruktur der Spektrallinien ein.
		März – George Nathaniel Curzon, britischer Politiker (* 1859)
		September – Georg Schweinfurth, deutscher Afrikaforscher (* 1836)
	de.wikipedia.org /wiki/1925 (1972 words)

	December 6 - Today in Science History (Site not responding. Last check: 2007-11-04)
		English chemist, corecipient with fellow Englishman Ronald George Wreyford Norrish and Manfred Eigen of West Germany of the 1967 Nobel Prize for Chemistry.
		All three were honoured for their studies in flash photolysis, a technique for observing the intermediate stages of very fast chemical reactions.
		None occurred during the twentieth century, but one will happen 8 Jun 2004.
	todayinsci.tripod.com /12/12_06.htm (1787 words)

	Science, Technology & Medicine Archives in the DC-MD-VA Area
		There is also an audio collection of tape recordings and 33 and 78 rpm disks; included are first-hand accounts by physicists of scientific life, and tape recordings of most of the oral history interviews.
		Georgetown University Medical Center John Vinton Dahlgren Memorial Library 3900 Reservoir Road, NW Washington, DC 20007 (202) 687-1666 Contact: Betsy King (on TuWTh) or write for appointment The Medical Center Archives holds Medical Center publications, dissertations, yearbooks, news clippings, portraits, and published histories of the University.
		T he oral history interviews [b] [c] include notable physicians and scientists selected by Martin Cummings (former Director of NIH), persons involved with health research in the U. (George Rosen collection), the child development movement (Milton J. enn collection), Johns Hopkins University, the Food and Drug Administration (FDA), women in medicine, hospital administration, and homeopathy.
	carnap.umd.edu /chps/archive.html (9287 words)

	Tsung-Dao Lee [Pictures and Photos of]
		middle age, profile, suit, sitting, chair; L-R: Tsung-Dao Lee, (former) President George Bush Sr.
		Tsung-Dao Lee, Abraham Pais, Edwin Albrecht Uehling, George Eugene Uhlenbeck
		suit; standing; outdoors; L-R Uhlenbeck, Pais, Lee, and Uehling
	www.aip.org /history/esva/catalog/esva/Lee_Tsung-Dao.html (320 words)

	Microeletrônica (Site not responding. Last check: 2007-11-04)
		Em trabalhos realizados entre 1928 e 1929, Lothar Wolfgang Nordheim observou que alguns elétrons no metal poderiam "atravessar a barreira de potencial" representada pela superfície do material, mesmo que tivesse energia menor do que a altura máxima dessa barreira.
		Nessa mesma época, Edward Uhler Condon e Ronald Wilfrid Gurney e, independentemente, George Gamow, também utilizaram a idéia de transmissão de partículas através de uma barreira para explicar o decaimento alfa radioativo [93].
		[46] O conceito de spin foi introduzido pelos físicos holandeses George Eugene Uhlenbeck (1900-1988) e Samuel Abraham Goudsmit (1902-1978), em 1925, a fim de explicar alguns aspectos experimentais observados nos espectros moleculares (BASSALO, Tomo 2, op.
	www.if.ufrgs.br /~gabriel/fismod/micro.htm (7914 words)

	1925 - netlexikon
		Januar - Georges Habasch, jüdischer Mediziner und Politiker
		März - George Nathaniel Curzon, britischer Politiker (* 1859)
		September - Georg Schweinfurth, deutscher Afrikaforscher (* 1836)
	www.lexikon-definition.de /1925.html (1928 words)

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