21. Harold Clayton Urey Harold Clayton Urey (18931981). downloadable version pdf Word .doc.Columbia Chemistry Professor Harold Urey experimentally proved the existence of http://www.columbia.edu/cu/chemistry/groups/brus/urey.html

Harold Clayton Urey (1893-1981) downloadable version [pdf] [Word .doc] Columbia Chemistry Professor Harold Urey experimentally proved the existence of deuterium in 1931. Urey won the 1934 Nobel Prize in Chemistry, and the American Chemical Society Gibbs Medal, for this discovery. Early that year Urey had conceived and worked out a method for concentration of a possible heavy hydrogen isotope by distillation of liquid hydrogen. The fractional distillation was done in collaboration with Brickwedde at NBS in Washington DC; 5 liters of liquid hydrogen was distilled down to 1 cc. Urey detected deuterium by its predicted spectrum in a discharge through the gas of this concentrated residue. High resolution atomic hydrogen spectra in the visible were obtained on a new 21 ft. spectrograph in the basement of Pupin Hall. The critical data clinching the discovery were taken by Urey and his assistant George Murphy on Thanksgiving Day 1931. Urey shared his Nobel Prize money with his collaborators, giving one quarter each to Murphy and Brickwedde. Urey was a son of small town, pre-industrial America; he once told colleagues that the first time he saw an automobile was at age 17 in rural Montana. After graduating from high school, he taught in small country schools for three years, before working his way through the University of Montana. He studied thermodynamics as a PhD student with G. N. Lewis at Berkeley, and then spent a year studying quantum theory in Europe with Niels Bohr, returning to the US in 1924. He apparently was the first Berkeley educated PhD chemist to win a Nobel Prize. He joined the Columbia Chemistry Faculty at age 36 in 1929, after 5 years at Johns Hopkins where he collaborated with F. O. Rice among others. He was a pioneer in application of quantum mechanics to molecules, and wrote

22. Encyklopedia: Urey Harold Clayton urey harold clayton (1893–1981), chemik amerykanski. Prowadzil badania wspólniez N. Bohrem (1923–1924), wykladal w John Hopkins University w http://portalwiedzy.onet.pl/49140,haslo.html

Czat Poczta Onet.pl onet.pl ... Portal wiedzy Strony WWW: W polskim Internecie ¦wiatowy Internet Katalog stron Wiadomo¶ci Niusy Pliki Encyklopedia WIEM Og³oszenia: Praca i rekrutacja Motoryzacyjne Nieruchomo¶ci Strona g³ówna Encyklopedie T³umacz Polszczyzna ... Sklep Szukaj w Onet.pl urey harold clayton katalog.onet.pl Kontakt Napisz do nas O nas Pomoc Jak szukaæ ... Informacje o produktach Encyklopedie wszystkie encyklopedia prawa Poka¿ tylko zdjêcia, filmy i mapy Jak szukaæ? Urey Harold Clayton Dodaj do notesu Chemia, Ameryka Pó³nocna, Stany Zjednoczone widzisz tylko tre¶ci has³a chcesz zobaczyæ resztê? dostêp do pe³nej wersji encyklopedii SMS tylko 3,66 z³ z VAT Wpisz kod: Dlaczego warto korzystaæ z WIEM? WIEM w internecie to najlepszy i najszybszy sposób uzyskania informacji o ¶wiecie. WIEM w internecie to codziennie aktualizowana i najbardziej aktualna encyklopedia internetowa w Polsce! WIEM zawiera obszern± bazê bogato ilustrowanych hase³. W serwisie specjalna wyszukiwarka do mediów, notes i kalendarium. Kupuj±c abonament uzyskujesz pe³ny dostêp do naj¶wie¿szej wersji encyklopedii. Niskie ceny!

23. Harold Clayton Urey Harold Clayton Urey 1893 - ? Profesor chemii na Uniwersytecie Columbia w NowymJorku w latach 1929-1945 i uniwersytecie w Chicago od roku 1945. http://www.republika.pl/ewamalecka/uczeni/urey.htm

Harold Clayton Urey - 1893 - ? Profesor chemii na Uniwersytecie Columbia w Nowym Jorku w latach 1929-1945 i uniwersytecie w Chicago od roku 1945. Prowadzi³ prace badawcze zwi±zane z odkryciem ciê¿kiego wodoru (1932); badania nad sk³adem izotopowym pierwiastków oraz rozdzielaniem izotopów. Laureat nagrody Nobla w dziedzinie chemii w roku 1934.

24. Urey Harold Clayton Urey American chemist. April 29, 1893 January 5, 1981.Nobel Prize 1934. Urey was interested in the chemistry of outer space and applied http://genchem.chem.wisc.edu/lab/PTL/PTL/CHEMISTS/urey.html

Urey Harold Clayton Urey: American chemist. April 29, 1893 - January 5, 1981. Nobel Prize 1934. Urey was interested in the chemistry of outer space and applied chemical analysis to meteorites; such analyses are the basis for cosmic abundances of the elements.

25. Harold Clayton Urey - Wikipédia Translate this page Harold Clayton Urey. Origem Wikipédia, a enciclopédia livre. Harold ClaytonUrey (Walkerton, Indiana, 29 de abril de 1893 - La Jolla, California, http://pt.wikipedia.org/wiki/Harold_Clayton_Urey

Harold Clayton Urey Origem: Wikip©dia, a enciclop©dia livre. Harold Clayton Urey Walkerton Indiana 29 de abril de La Jolla California 5 de janeiro de Qu­mico estadunidense Estudou na Universidade de Montana , onde graduou-se em , come§ando a trabalhar com a qu­mica Barrett de Filad©lfia Pensilv¢nia . Durante a I Guerra Mundial se dedicou a investiga§£o, continuando seus estudos na Universidade de Calif³rnia , onde se doutorou em , estudando f­sica at´mica com Niels Bohr na Universidade de Copenhaga Desde e at© exerceu o magist©rio, sucessivamente na Universidade de Montana Universidade Johns Hopkins ) e Universidade de Columbia ), assim como na Universidade de Chicago , onde foi professor de qu­mica do Instituto de Estudos Nucleares, e Universidade de Oxford . Em foi professor na Universidade de Calif³rnia, em San Diego Seus trabalhos enfocaram inicialmente no isolamento de is³topos pesados de hidrogªnio oxigªnio nitrogªnio carbono e enxofre , sendo laureado em com o Prªmio Nobel de qu­mica pela obten§£o do deut©rio ( hidrogªnio pesado ) e pelo isolamento da ¡gua pesada ( ³xido de deut©rio, D

26. Harold Clayton Urey - Wikipedia Translate this page Harold Clayton Urey. De Wikipedia, la enciclopedia libre. Harold Clayton Urey (n.Walkerton, Indiana, 29 de abril de 1893 - † La Jolla, California, http://es.wikipedia.org/wiki/Harold_Clayton_Urey

Harold Clayton Urey De Wikipedia, la enciclopedia libre. Harold Clayton Urey (n. Walkerton Indiana 29 de abril de La Jolla California 5 de enero de Qu­mico estadounidense Estudi³ en la Universidad de Montana , donde se gradu³ en , entrando a trabajar en la compa±­a qu­mica Barrett de Filadelfia Pensilvania . Durante la I Guerra Mundial se dedic³ a la investigaci³n, continuando despu©s sus estudios en la Universidad de California , donde se doctor³ en y estudi³ f­sica at³mica con Niels Bohr en la Universidad de Copenhague Desde y hasta ejerci³ la ense±anza, sucesivamente en la Universidad de de Montana, Universidad Johns Hopkins ) y Universidad de Columbia ), as­ como en la Universidad de Chicago , donde fue profesor de qu­mica del Instituto de Estudios Nucleares, y Universidad de Oxford. En fue profesor en la Universidad de California, en San Diego Sus trabajos se centraron inicilmente en el aislamiento de is³topos pesados del hidr³geno ox­geno nitr³geno carbono y azufre , siendo galardonado en con el premio Nobel de Qu­mica por la obtenci³n de deuterio (hidr³geno pesado) y el aislamiento del agua pesada (³xido de deuterio, D-2O).

27. Chemistry 1934 (1893 1981) 1934 Nobel Prize in Chemistry for his discovery of heavy hydrogen. USA, Columbia University New York, NY, USA. http://nobelprize.org/chemistry/laureates/1934/index.html

HOME SITE HELP ABOUT SEARCH ... EDUCATIONAL The Nobel Prize in Chemistry 1934 "for his discovery of heavy hydrogen" Harold Clayton Urey USA Columbia University New York, NY, USA b. 1893 d. 1981 The Nobel Prize in Chemistry 1934 Presentation Speech Harold C. Urey Biography ... Nobel Lecture The 1934 Prize in: Physics Chemistry Physiology or Medicine Literature ... Peace Find a Laureate: Nobelprize.org Get to know all 770 Prize Winners! » Games and Simulations » SITE FEEDBACK ... TELL A FRIEND Last modified April 13, 2005

28. Chemistry 1934 (1893 1981) 1934 Nobel Prize in Chemistry for his discovery of heavy hydrogen.USA, Columbia University New York, NY, USA. http://nobelprize.org/chemistry/laureates/1934/

HOME SITE HELP ABOUT SEARCH ... EDUCATIONAL The Nobel Prize in Chemistry 1934 "for his discovery of heavy hydrogen" Harold Clayton Urey USA Columbia University New York, NY, USA b. 1893 d. 1981 The Nobel Prize in Chemistry 1934 Presentation Speech Harold C. Urey Biography ... Nobel Lecture The 1934 Prize in: Physics Chemistry Physiology or Medicine Literature ... Peace Find a Laureate: Nobelprize.org Get to know all 770 Prize Winners! » Games and Simulations » SITE FEEDBACK ... TELL A FRIEND Last modified April 13, 2005

29. Harold Clayton Urey Winner Of The 1934 Nobel Prize In Chemistry harold clayton urey, a Nobel Prize Laureate in Chemistry, at the Nobel PrizeInternet Archive. http://almaz.com/nobel/chemistry/1934a.html

H AROLD C LAYTON U REY 1934 Nobel Laureate in Chemistry for his discovery of heavy hydrogen. Background Residence: U.S.A. Affiliation: Columbia University, New York, NY Featured Internet Links Search WWW Search The Nobel Prize Internet Archive Links added by Nobel Internet Archive visitors Harold C. Urey Middle School, Walkerton In. was named after this Nobel prize winner. He grew up in the Walkerton area and came for the dedication of the school. Harold C. Urey Middle School (submitted by Andy Stegemiller Harold Clayton Urey – Biography (submitted by Chinnappan Baskar Harold Clayton Urey - BIOGRAPHICAL MEMOIRS (submitted by Dan Thomas H. Urey datasheet (submitted by Nob Harold Clayton Urey Papers (submitted by Davis) Harold Clayton Urey (Chemistry, Biographies) (submitted by Jackson) Harold C. Urey Photos (submitted by Doctor) Harold C. Urey biography (submitted by Tina) his discovery of heavy hydrogen (submitted by Vladisl) Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

30. Harold Clayton Urey urey, harold clayton (18931981) (The Hutchinson Dictionary of Scientific Biography).urey, harold clayton (The Columbia Encyclopedia, Sixth Edition) http://www.infoplease.com/ce6/people/A0850185.html

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31. Harold Clayton Urey [Pictures And Photos Of] harold clayton urey pictures, photos, photographs, images, physics history. http://www.aip.org/history/esva/catalog/esva/Urey_Clayton.html

A larger image of any photo may be purchased. Click on an image to place an order. For more information visit our home page Percy Williams Bridgman, Arthur Holly Compton, Irving Langmuir, Harold Clayton Urey Description old age, profile, eyeglasses, suit, sitting; L-R: P.W. Bridgman, H. Urey, I. Langmuir, A. Compton, and unidentified man (at far right). Item ID Bridgman Percy D2 Martin David Kamen, Harold Clayton Urey Description l-r: Kamen; Urey; eyeglasses; standing; outdoors; talking; La Jolla Item ID Kamen C1 Zdenek Kopal, Homer Edward Newell, Harold Clayton Urey Description old age; suit; eyeglasses; table; microphone; L-R Zdenek Kopal, Harold Urey, Homer Newell Item ID Kopal Zdenek C1 Francis Wheeler Loomis, Harold Clayton Urey Description suit; standing; L-R Francis Loomis, Harold Urey Item ID Loomis Francis C2 Harold Clayton Urey Description old age; full-face; eyeglasses; suit; gesturing; standing; lunar background Item ID Urey A5 Harold Clayton Urey Description old age; full-face; suit; sitting Item ID Urey A6 Harold Clayton Urey Description old age; full-face; suit; sitting; viewing; books; desk; papers; office

32. AIP International Catalog Of Sources urey, harold clayton, 1893. Nobel Prizes. Research. Chemistry. Browse Catalog.by author Reminiscences of harold clayton urey oral history, 1964. http://www.aip.org/history/catalog/5734.html

If you are not immediately redirected, please click here My List - Help Browse Archival Resources Archival Finding Aids Books Photos Browse FAQs Past Searches History Home Search: Author Subject Title Journal/Newspaper Title Series Computer File (Software) Title Video Title Refine Search AIP Niels Bohr Library Item Information Holdings More by this author Urey, Harold Clayton, 1893- Subjects Urey, Harold Clayton, 1893- Nobel Prizes. Research. Chemistry. Browse Catalog by author: Urey, Harold Clayton, 1893- by title: Reminiscences of Har... MARC Display Reminiscences of Harold Clayton Urey : oral history, 1964. by Urey, Harold Clayton, 1893- Description: Transcript: 44 leaves. Use and Reproduction : Permission required to cite, quote, and reproduce. Contact repository for information. Owning Repository: Columbia University. Oral History Research Office. Box 20, Room 801 Butler Library, New York, NY 10027, USA Country of Repository: USA Location of Original/Copy: Copy at: Niels Bohr Library, American Institute of Physics, College Park, MD Biography/History: Chemist.

33. Urey, Harold Clayton urey, harold clayton. US chemist. In 1932 he isolated heavy water and was awardedthe Nobel Prize for Chemistry in 1934 for his discovery of deuterium http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0002678.html

// Show bread crumbs navigation path. breadcrumbs('four'); //> From: www.tiscali.co.uk/reference/ ENCYCLOPAEDIA Hutchinson's Encyclopaedia Men's Health ... Wildlife Frames not supported Frames not supported Encyclopaedia Search Click a letter for the index A B C D ... Z Or search the encyclopaedia: Urey, Harold Clayton US chemist. In 1932 he isolated heavy water and was awarded the Nobel Prize for Chemistry in 1934 for his discovery of deuterium (heavy hydrogen). During World War II he was a member of the Manhattan Project, which produced the atomic bomb, and after the war he worked on tritium (another isotope of hydrogen, of mass 3) for use in the hydrogen bomb, but later he advocated nuclear disarmament and world government. Related Links Rutherford, Ernest deuterium Wilkins, Maurice Hugh Frederick Fermi, Enrico ... Soddy, Frederick Afghanistan Flag Black represents the occupation of foreigners, red represents the blood of freedom fighters, and green denotes Islam. In the middle of the flag is a mehrab, an arch in a mosque where the congregation stands, and a mender, a pulpit in a mosque. The mehrab and mender are both in white, and are enclosed by wheat. Effective date 5 February 2002. Buy Cheap Games Gran Turismo 4 Win £500 cash Volunteer to take part in our Tiscali survey and you could win £500 to spend on whatever you want.

34. Lloyd, Harold (Clayton) urey, harold clayton Laurel and Hardy April 20 On this day Keaton,Buster (Joseph Francis) Garland, Judy NEW Brain Teaser http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0002056.html

// Show bread crumbs navigation path. breadcrumbs('four'); //> From: www.tiscali.co.uk/reference/ ENCYCLOPAEDIA Hutchinson's Encyclopaedia Men's Health ... Wildlife Frames not supported Frames not supported Encyclopaedia Search Click a letter for the index A B C D ... Z Or search the encyclopaedia: Lloyd, Harold (Clayton) US film comedian. One of the most popular actors of the 1920s, he performed daring stunts in cliffhanger serials. He appeared from 1913 in silent and talking films. His silent films include Safety Last (1923), and The Freshman (1925). His first talkie was Movie Crazy Related Links April 20 - On this day March 8 - On this day Keaton, Buster (Joseph Francis) Laurel and Hardy ... Sennett, Mack Serbia and Montenegro Flag Blue, white, and red recall the 19th century Russian tricolour. The Partisan Star was removed in 1991. Effective date 27 April 1992. Buy Cheap Games Gran Turismo 4 Win £500 cash Volunteer to take part in our Tiscali survey and you could win £500 to spend on whatever you want. Print now Send to a friend Related articles Related products var st_pg=""; var st_ai=""; var st_v=1.0; var st_ci="762"; var st_di="d001"; var st_dd="st.sageanalyst.net"; var st_tai="v:1.2.3";

35. Harold C. Urey: Definition And Much More From Answers.com urey, harold clayton (y?r e) , 1893–1981, American chemist, b. Walkerton, Ind., grad . The noun harold clayton urey has one meaning http://www.answers.com/topic/harold-c-urey

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Dictionary Encyclopedia WordNet Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Harold C. Urey Dictionary U·rey yʊr Harold Clayton American chemist. He won a 1934 Nobel Prize for his discovery of heavy hydrogen. Encyclopedia Urey, Harold Clayton yʊr ) , 1893–1981, American chemist, b. Walkerton, Ind., grad. Univ. of Montana (B.S., 1917), Ph.D. Univ. of California, 1923. He taught at Johns Hopkins (1924–29), at Columbia (1929–45; as head of the department of chemistry from 1939 to 1942), and at the Univ. of Chicago (1945–58). He became professor-at-large at the Univ. of California in 1958. For his isolation of deuterium (heavy hydrogen) he received the 1934 Nobel Prize in Chemistry; he later isolated heavy isotopes of oxygen, nitrogen, carbon, and sulfur. During World War II, Urey took part in the research leading to the production of the atomic bomb; his special work was on methods of separating uranium isotopes and the production of heavy water. With A. E. Ruark he wrote Atoms, Molecules, and Quanta

36. Harold Clayton Urey urey, harold clayton, yoor e Pronunciation Key. urey, harold clayton , 1893–1981,American chemist, b. Walkerton, Ind., grad. Univ. of Montana (BS, 1917), http://www.factmonster.com/ce6/people/A0850185.html

Home U.S. People Word Wise ... Homework Center Fact Monster Favorites Hurricane Katrina Children as Authors Children Inventors The Doctor's In ... 2006 TFK Almanac Reference Desk Atlas Almanacs Dictionary Encyclopedia ... Encyclopedia Urey, Harold Clayton Pronunciation Key Urey, Harold Clayton Atoms, Molecules, and Quanta The Columbia Electronic Encyclopedia, Page Tools: Cite Print See more Encyclopedia articles on: Chemistry: Biographies AD AD AD ADS Business Cards Link to Fact Monster Add Fact Monster search ... Privacy Brought to you by: Information Please

37. Harold Clayton Urey, April 29, 1893—January 5, 1981 | By James R. Arnold, Jacob harold clayton urey was born in Walkerton, a small town in Indiana, on April 29,1893. His father, a school teacher and a minister in the Church of the http://www.nap.edu/html/biomems/hurey.html

BIOGRAPHICAL MEMOIRS National Academy of Sciences Harold Clayton Urey By James R. Arnold, Jacob Bigeleisen, and Clyde A. Hutchison Jr. HAROLD UREY WAS A scientist whose interests, accomplishments, and influence spanned the disciplines of chemistry, astronomy, astrophysics, geology, geophysics, and biology. Although he was meticulous in his attention to detail, his sights were always on broad questions at the forefront of knowledge. His unusual powers of concentration and capacity for hard work accounted for much of his success in exploring and opening up major new fields of research, including his discovery of deuterium and work on isotope chemistry, isotope separation, isotope geology, and cosmochemistry. Urey's approach to a new area began with his becoming thoroughly familiar with what was known about the subject of his curiosity and then the formulation of a theory to explain a large amount of uncorrelated material, which was then followed by carefully planned experiments. The latter frequently involved the design of new experimental equipment beyond the state of the art. As a graduate student in physical chemistry in the early 1920s, Urey realized that future progress in that discipline would require a knowledge of the quantum theory of atomic and molecular systems, which was undergoing a revolution in Europe. He supplemented his command of mathematics and physics by formal coursework prior to going to the Bohr Institute in Copenhagen in 1923. His exposure there led to his formulation of the concept of the electron spin concurrent with but less complete than the Goudsmit-Uhlenbeck discovery. After completion of his text with Arthur Ruark

38. Nat' Academies Press, Biographical Memoirs V.68 (1995) 353362, harold clayton urey, pp. 363-412, Carroll Milton Williams, pp. 413-434,Jerrold R. Zacharias, pp. 435-450. GO TO PAGE. Search Results http://www.nap.edu/booksearch.php?term=harold urey&isbn=0309052394

39. Urey, Harold Clayton urey, harold clayton (18931981) urey was born in Indiana and educated atMontana State University. He became professor of chemistry at Columbia 1934, http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/U/Urey/1.html

Urey, Harold Clayton US chemist. In 1932 he isolated heavy water and discovered deuterium, for which he was awarded the 1934 Nobel Prize for Chemistry. During World War II he was a member of the Manhattan Project, which produced the atomic bomb, and after the war he worked on tritium (another isotope of hydrogen, of mass 3) for use in the hydrogen bomb, but later he advocated nuclear disarmament and world government. Urey was born in Indiana and educated at Montana State University. He became professor of chemistry at Columbia 1934, and was at Chicago 1945-58. After deuterium, Urey went on to isolate heavy isotopes of carbon, nitrogen, oxygen, and sulphur. His group provided the basic information for the separation of the fissionable isotope uranium-235 from the much more common uranium-238. Urey also developed theories about the formation of the Earth. He thought that the Earth had not been molten at the time when its materials accumulated. In 1952, he suggested that molecules found in its primitive atmosphere could have united spontaneously to give rise to life. The Moon, he believed, had a separate origin from the Earth.

40. Urey, Harold Clayton. The Columbia Encyclopedia, Sixth Edition. 2001-05 urey, harold clayton. The Columbia Encyclopedia, Sixth Edition. 200105. http://www.bartleby.com/65/ur/Urey-Har.html

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