The Manhattan Project

Scientific Discoveries

Charles Critchfield

Charles Critchfield was a mathematical physicist assigned to work on the development of gun-type fission weapons, and eventually implosion-type weapons, at Los Alamos. He returned to Los Alamos in 1952 to work on the development of the hydrogen bomb.

David Fox's Interview

Reed Srere: Hi, I am Reed Srere – R-e-e-d S-r-e-r-e. I am recording this oral history for the Atomic Heritage Foundation on June 3 [2015] in Washington, DC. Please state your name.

David Fox: I am David Fox. I live in Providence, Rhode Island. My father was a physicist on the Manhattan Project in Manhattan. That is why I am here.

Srere: Please tell us your place and date of birth.

Fox: Mine?

Srere: Yes.

Leon Love and George Banic's Interview

[Audio distortion occurs throughout the interview.]

Stephane Groueff: Recording interview with Mr. Leon Love at Oak Ridge July 15, 1963. Mr. Love works with Y-12.

Would you mind repeating sort of some of the characteristics of Y-12, some of the figures? For instance, how many buildings? How many magnets? How many Alpha [calutrons] and Beta [calutrons]? How many units in each?

Leon Love: There were five buildings containing the output separators, and there were nine tracks total in these five buildings.

Alexander Langsdorf's Interview

Stephane Groueff: Now it is recording Dr. Langsdorf. If you can tell me in a few words how you got connected with the project and where you came from.

Alexander Langsdorf: Oh, in the first place, as soon as I got my PhD at MIT, I went out to Berkeley as a national research fellow and started to work in Ernest Lawrence’s lab doing nuclear physics, which was a brand new field then, just opening up in 1938.

Groueff: ’38.


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