21. 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). http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0002678.html

22. 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. 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.

23. Urey, Harold Clayton | Definition Of Urey, Harold Clayton | HighBeam.com: Online Find out what Urey, Harold Clayton means Complete Dictionary of Scientific Biography has the definition of Urey, Harold Clayton. Research related newspaper, magazine, and http://www.highbeam.com/doc/1G2-2830905374.html

24. Urey, Harold Clayton Synonyms, Urey, Harold Clayton Antonyms | Thesaurus.com No results found for Urey, Harold Clayton Please try spelling the word differently, searching another resource, or typing a new word. http://thesaurus.com/browse/Urey, Harold Clayton

25. Harold Clayton Urey — FactMonster.com Encyclopedia Urey, Harold Clayton. Urey, Harold Clayton (yoor'ē) , 1893 – 1981, American chemist, b. Walkerton, Ind., grad. Univ. of Montana (B.S., 1917), Ph.D. Univ. of California http://www.factmonster.com/ce6/people/A0850185.html

Home U.S. People Word Wise ... Homework Center Fact Monster Favorites Halloween Math Flashcards Geography Guide Seven New Wonders of the World ... The Fifty States Reference Desk Atlas Almanacs Dictionary Encyclopedia ... Encyclopedia Urey, Harold Clayton Urey, Harold Clayton key Atoms, Molecules, and Quanta The Columbia Electronic Encyclopedia, Cite Print See more Encyclopedia articles on: Chemistry: Biographies Help Site Map Atlas ... Encyclopedia Click Here! Click Here! 24 X 7 Private Tutor 24 x 7 Tutor Availability Unlimited Online Tutoring 1-on-1 Tutoring Explore Math Homework Help Math Problem Solver Contact Us Advertise with Fact Monster ... Privacy Part of Family Education Network Homework Help Reference Site K-8 Kids Poptropica ... Online Gradebook Click Here!

26. Urey, Harold Clayton Urey, Harold Clayton Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2004. Read Urey, Harold Clayton at Questia library. http://www.questia.com/read/101276075

questia.Dictionary.domain = 'questia'; Letter A Letter B Letter C Letter D ... Letter Z addthis_url = 'http://www.questia.com/read/101276075'; addthis_title = 'Urey, Harold Clayton'; addthis_pub = 'ahanin'; This feature allows you to create and manage separate folders for your different research projects. To view markups for a different project, make that project your current project. This feature allows you to save a link to the publication you are reading or view all the publications you have put on your bookshelf. This feature allows you to save a link to the page you are reading, which you can later return to from Projects. This feature allows you to highlight words or phrases on the publication page you are reading. This feature allows you to save a note you write on the publication page you are reading. This feature allows you to create a citation to the page you are reading that you can paste into your paper. Highlight a passage to include that passage as a quotation. This feature allows you to save a reference to a publication you are reading for your bibliography or generate a bibliography you can paste into your paper.

27. Urey, Harold Clayton | Definition Of Urey, Harold Clayton | HighBeam.com: Online Find out what Urey, Harold Clayton means A Dictionary of Chemistry has the definition of Urey, Harold Clayton. Research related newspaper, magazine, and journal articles at http://www.highbeam.com/doc/1O81-UreyHaroldClayton.html

28. Harold Urey Definition Of Harold Urey In The Free Online Encyclopedia. Urey, Harold Clayton (y r`ē), 1893–1981, American chemist, b. Walkerton, Ind., grad. Univ. of Montana (B.S., 1917), Ph.D. Univ. of California, 1923. http://encyclopedia2.thefreedictionary.com/Harold Urey

29. Harold Clayton Urey Winner Of The 1934 Nobel Prize In Chemistry Harold Clayton Urey, a Nobel Prize Laureate in Chemistry, at the Nobel Prize Internet Archive. http://www.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) Harold C. Urey Biography from Encyclopedia Britannica (submitted by www.britannica.com) Urey Clayton Short Biography (submitted by Lukas) Back to The Nobel Prize Internet Archive Literature Peace Chemistry ... Medicine We always welcome your feedback and comments

30. Urey, Harold Urey, Harold Clayton Urey: Information From Answers.com Urey , Harold Urey , Harold Clayton Urey United States chemist who discovered deuterium (18931981) http://www.answers.com/topic/urey-harold-urey-harold-clayton-urey

31. Urey, Harold Clayton Biography - S9.com US chemist discovered deuterium Nobel Prize in Chemistry 1934 biography from s9.com. http://www.s9.com/Biography/Urey-Harold-Clayton

32. Urey, Harold Clayton | Define Urey, Harold Clayton At Dictionary.com Copy paste this link to your blog or website to reference this page. http://dictionary.reference.com/browse/urey, harold clayton?qsrc=2446

33. Urey Harold Clayton - Science Definition Definition of Urey Harold Clayton from The American Heritage Science Dictionary. http://science.yourdictionary.com/urey-harold-clayton

34. Harold Clayton Urey: Biography From Answers.com Urey, Harold Clayton (yÊŠr ' Ä“), 18931981, American chemist, b. Walkerton, Ind., grad. Univ. of Montana (B.S., 1917), Ph.D. Univ. of California, 1923. http://www.answers.com/topic/harold-c-urey

35. McGraw-Hill's AccessScience About AccessScience. AccessScience is a subscriptionbased website that features continually updated scientific and http://www.accessscience.com/content.aspx?searchStr=Deuterium&id=M0091102

36. Urey, Harold Clayton | Chemical Heritage Foundation RCA electron microscope, 1950 http://www.chemheritage.org/discover/chemistry-in-history/topics/people-and-orga

37. AccessScience | Biography | Urey, Harold Clayton The content above is only an excerpt. Please log in for full access. http://www.accessscience.com/content.aspx?id=M0091102

38. Urey, Harold Clayton (1893-1981) American physical chemist and Nobel laureate (1935) who, along with Stanley Miller, carried out research into the possible makeup of Earth's primeval atmosphere and prebiotic http://www.daviddarling.info/encyclopedia/U/Urey.html

39. Urey, Harold Clayton Urey, Harold Clayton. Urey, Harold Clayton (18931981), American chemist and Nobel laureate, best known for his discovery of deuterium, or heavy hydrogen, symbol D or 2H. http://www.freegk.com/nobel/Urey.php

40. Urey, Harold Clayton (1893–1981) Definition Urey, Harold Clayton (1893–1981) definition of Urey, Harold Clayton (1893–1981) from AstronomyDictionary.com US chemist who lived from 1893 to 1981 and who worked http://www.astronomydictionary.com/definition/Urey-Harold-Clayton-18931981.html

window.TRACK_LINKS = true; AstronomyDictionary.com Urey, Harold Clayton (1893–1981) Definition US chemist who lived from 1893 to 1981 and who worked extensively on chemical problems of astronomical significance. He discovered Deuterium , for which he won the Nobel Prize in chemistry, and worked widely on the chemistry of meteorites and other solar system objects. This content can be found on the following page: AstronomyDictionary.com/definiton/Urey-Harold-Clayton-18931981.html document.write(unescape("%43%6F%70%79%72%69%67%68%74%20%26%63%6F%70%79%3B")); document.write(unescape("%41%6C%6C%20%52%69%67%68%74%73%20%52%65%73%65%72%76%65%64%2E%20%55%6E%61%75%74%68%6F%72%69%7A%65%64%20%64%75%70%6C%69%63%61%74%69%6F%6E%2C%20%69%6E%20%77%68%6F%6C%65%20%6F%72%20%69%6E%20%70%61%72%74%2C%20%69%73%20%73%74%72%69%63%74%6C%79%20%70%72%6F%68%69%62%69%74%65%64%2E")); AstronomyDictionary.com document.write(unescape("%69%73%20%6F%77%6E%65%64%20%61%6E%64%20%6F%70%65%72%61%74%65%64%20%62%79%20%57%65%62%46%69%6E%61%6E%63%65%20%49%6E%63%2E%20%49%66%20%79%6F%75%20%68%61%76%65%20%61%6E%79%20%71%75%65%73%74%69%6F%6E%73%20%61%62%6F%75%74%20%74%68%69%73%20%73%69%74%65%2C%20%70%6C%65%61%73%65%20%66%65%65%6C%20%66%72%65%65%20%74%6F%20%63%6F%6E%74%61%63%74%20%75%73%20%61%74%20%66%65%65%64%62%61%63%6B%40%77%65%62%66%69%6E%61%6E%63%65%69%6E%63%2E%63%6F%6D")); Tools email print cite link translate Copy and paste this HTML in your website to link to this page Select language...

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