J. Robert Oppenheimer

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J. Robert Oppenheimer and Leslie R. Groves

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J. Robert Oppenheimer

Q: What did J. Robert Oppenheimer do in the Manhattan Project?

J. Robert Oppenheimer was the director of the laboratory at Los Alamos , New Mexico, where the atomic bomb was designed. The theoretical work of how the atomic bomb would function had to be converted into a practical weapon that could be dropped from an airplane and explode above its target.

Q: What is J. Robert Oppenheimer famous for?

J. Robert Oppenheimer is most famous for being director of the Manhattan Project ’s laboratory at Los Alamos , New Mexico, where the atomic bomb was designed. The revoking of his security clearance during the McCarthy era because of accusations of past associations with communists provoked outcry from the scientific community.

American physicist

Also known as: Julius Robert Oppenheimer

Written by Michel Rouzé

Fact-checked by The Editors of Encyclopaedia Britannica

Last Updated: Mar 29, 2024 • Article History

J. Robert Oppenheimer

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Category: Science & Tech

In full:: Julius Robert Oppenheimer

Born:: April 22, 1904, New York, New York, U.S.

Died:: February 18, 1967, Princeton, New Jersey (aged 62)

Notable Family Members:: spouse Katherine Oppenheimer

Subjects Of Study:: quantum; subatomic particle; atomic bomb

Role In:: Manhattan Project

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Mar. 29, 2024, 12:49 PM ET (AP)

'Oppenheimer' finally premieres in Japan to mixed reactions and high emotions

What did J. Robert Oppenheimer do in the Manhattan Project?

What is J. Robert Oppenheimer famous for?

J. Robert Oppenheimer (born April 22, 1904, New York, New York, U.S.—died February 18, 1967, Princeton, New Jersey) was an American theoretical physicist and science administrator, noted as director of the Los Alamos Laboratory (1943–45) during development of the atomic bomb and as director of the Institute for Advanced Study, Princeton (1947–66). Accusations of disloyalty led to a government hearing that resulted in the loss of his security clearance and of his position as adviser to the highest echelons of the U.S. government. The case became a cause célèbre in the world of science because of its implications concerning political ...(100 of 1104 words)

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