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Because he realized what a horrificly powerful weapon nuclear bombs actually are & he decided to compaign against the use of them after they were used in Japan.

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In 1954 after he had helped develop the atomic bomb j Robert opppenheimer was investigated and denied future access to classified information because?

The reason Oppenheimer was investigated and denied future access to classified information was because he had friends and family who were into the communist party. He also disagreed with President Truman when it came to building more powerful bombs.


Why after he had helped develop the atomic bomb was J. Robert Oppenheimer investigated and denied future access to classified information?

The primary reason was that Edward Teller hated him. A secondary reason was Joseph McCarthy's communist witch hunts at the time and that fact that both Robert Oppenheimer's wife Kitty and brother Frank had been registered members of the communist party during the 1930s (like many in universities at the time).


What does the j in j Robert oppenheimer mean?

the J on J Robert Oppenheimer means Julius....


Who are j robert oppenheimer's grandchildren?

Dorothy Vanderford, Charles Oppenheimer, Ella Oppenheimer


Is dr Michael oppenheimer related to Robert oppenheimer?

No, Dr. Michael Oppenheimer is not directly related to Robert Oppenheimer. Robert Oppenheimer is a renowned physicist known for his work on the Manhattan Project, while Dr. Michael Oppenheimer is an environmental scientist and professor at Princeton University.


What is Robert Oppenheimer's birthday?

Robert Oppenheimer was born on April 22, 1904.


What is Robert Oppenheimer's middle name?

Robert Oppenheimer's middle name is Julius.


When did Robert Oppenheimer get married?

Robert Oppenheimer was born on April 22, 1904.


Where did J. Robert Oppenheimer die?

J. Robert Oppenheimer died in the Virgin Islands.


What is the contribution Robert Oppenheimer in chemistry?

Oppenheimer was not a chemist.


What kind of cancer did Robert Oppenheimer die?

Robert Oppenheimer died of throat cancer in 1967.


What was J Robert Oppenheimer's big discovery?

Robert Oppenheimer's big discovery was the atomic bomb