EntityQ1701540· pop 14· linked from 194 articlesJohn R. DunningSign in to saveAmerican physicist (1907-1975)ConnectionsneutronEntityphysicsEntityHarry S. TrumanEntityDwight D. EisenhowerPersonQ7085EntityuraniumEntityErnest RutherfordEntityEnrico FermiEntityInternational Standard Book NumberEntitybariumEntitynuclear weaponEntityPresident of the United StatesConceptWerner HeisenbergEntityThe New York TimesEntitynuclear fissionEntitydigital object identifierEntityJames ChadwickEntityPrinceton UniversityEntityOtto HahnEntityColumbia UniversityEntityCategories1907 births1975 deaths20th-century American physicistsAmerican nuclear physicistsColumbia University alumniColumbia University facultyFellows of the American Physical SocietyManhattan Project peopleMedal for Merit recipientsMembers of the United States National Academy of SciencesNebraska Wesleyan University alumniPeople from Shelby, Nebraska