Nuclear Fission
Confirms uranium fission experimentally with Meitne
Role range: 1904-1979
Historical biography archive · Updated 2026-11-03
Otto Robert Frisch Biography and Timeline
Follow Otto Robert Frisch through 5 dated historical records for Austria.
Otto Robert Frisch, historical timeline
A chronological timeline drawn from matching World History Database records.
5Distinct records
1 of 1Page
1939–1945Years on this page
1939
Term Nuclear Fission
Introduces the term nuclear fission while explaining the splitting of uranium nuclei with Lise Meitner.
1945
Dragon Prompt Critical Experiment
Frisch's Dragon experiment produces the first assembly made prompt critical by neutrons alone, using uranium hydride at Los Alamos.
Uranium Zero Yield Tests
Frisch completes criticality and zero-yield experiments with uranium-235 needed to confirm weapon-core behaviour.
Implosion Core Criticality Confirmation
Frisch confirms through criticality measurements that the planned implosion-core design is satisfactory.
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.