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Date: 2012-08-16 11:37:48Physical chemists Harold Urey Neutron moderators Guggenheim Fellows Deuterium Arthur Edward Ruark Hydrogen Gilbert N. Lewis Heavy water Chemistry Physics Science | national academy of sciences Harold Clayton Urey 1893—1981Add to Reading ListSource URL: www.nasonline.orgDownload Document from Source WebsiteFile Size: 248,92 KBShare Document on Facebook |