EntityQ5286753· pop 5· linked from 9 articlesSem SælandSign in to saveNorwegian physicist (1874–1940)ConnectionsNorwayCountryphysicsEntityUniversity of OsloEntityrectorEntityOrder of St. OlavEntityGreat Norwegian EncyclopediaEntityOrder of the FalconEntityOrder of the Crown of ItalyEntityNorsk biografisk leksikonEntityNorwegian Institute of TechnologyEntityFredrik StangEntityDidrik Arup SeipEntityKnut HelleEntityCategories1874 births1940 deathsAcademic staff of the University of OsloGrand Knights of the Order of the FalconRectors of the University of Oslo