What is Harold Urey?
{{Infobox scientist|name = Harold Clayton Urey |image = Harold_Urey.jpg |image_size= 180px |caption = Harold Urey, circa 1963 |birth_date = {{birth date|mf=yes|1893|4|29}} |birth_place = [[Walkerton, Indiana]], USA |nationality = United States |death_date = {{death date and age|mf=yes|1981|1|5|1893|4|29}} |death_place = [[La Jolla, California]], USA |field = [[Physical chemistry]] |work_institution = [[University of Copenhagen]]<br>[[Johns Hopkins University]]<br>[[Columbia University]]<br>[[Institute for Nuclear Studies]] <br>[[University of Chicago]]<br>[[University of California, San Diego]] |alma_mater = [[University of Montana]]<br>[[University of California, Berkeley]] |doctoral_advisor = [[Gilbert N. Lewis]] |doctoral_students = [[Stanley Miller]] |known_for = [[Deuterium]]<br>[[Miller–Urey experiment]]<br>[[Urey–Bradley force field]] |prizes = [[Nobel Prize for Chemistry]] (1934)<br>[[Franklin Medal]] (1943) |signature = Harold Urey signature.svg }} '''Harold Clayton Urey''' (April 29, 1893 – January 5, 1981) was an American [[Physical chemistry|physical chemist]]. His pioneering work on [[isotope]]s earned him the [[Nobel Prize in Chemistry]] in 1934. He played a significant role in the development of the [[Nuclear weapon|atom bomb]], and he had ideas on the [[Miller–Urey experiment|development of organic life from non-living matter]]. ==Biography== Urey earned a degree in [[zoology]] from the [[University of Montana]] and a Ph.D. in chemistry, studying [[thermodynamics]] under [[Gilbert N. Lewis]] at the [[University of California, Berkeley]]. At Berkeley, Urey was influenced by the work of [[physicist]] [[Raymond T. Birge]] and soon joined [[Niels Bohr]] in [[Copenhagen]] to work on atomic structure at the [[Institute for Theoretical Physics]]. On his return to the U.S. and between 1924 and 1928, he taught at The [[Johns Hopkins University]] as 'Associate in Chemistry', and then at [[Columbia University|Columbia]] where he assembled a team of associates. He wrote (with Arthur Ruark), ''Atom