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Historical person

John R. Dunning Biography

Historical biography and chronological timeline for John R. Dunning, based on 1 World History Database records associated with United States of America.

1 records1940–19401 events1 places

Chronological biography

1940

Uranium-235 FissionMarch 1940
Science / Physics · Physicist · New York

Shows uranium-235 is responsible for slow-neutron fission.

Titles and roles

Physicist

Record provenance

This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.