The Manhattan Project

Innovations

Stanislaus Ulam's Interview (1979)

Stanislaus Ulam: You know, after forty-five years in this country, my accent is still very hard.

Martin Sherwin: That’s all right. I still have a Brooklyn accent.

Ulam:  Oh, you do?

Sherwin: I left Brooklyn twenty years ago. I think even though I do know a lot of the answers to some of the questions I’m going to ask you from your book—

Ulam:  Yes.

Kathleen Maxwell's Interview

Nate Weisenberg: My name is Nate Weisenberg. I am doing this interview for the Atomic Heritage Foundation with Kathleen Maxwell here in Wellesley, Massachusetts. It is Monday, April 25, 2016.

How did you get involved with the Manhattan Project?

Kathleen Maxwell: I had just finished my Master’s degree at Smith [College], and I was contemplating staying at Smith because the main men in our department there had gone to work for the Manhattan Project someplace else.

Jersey City, NJ

Jersey City was home to the headquarters of the M. W. Kellogg Company, which specialized in chemical engineering projects. In 1942, the S-1 Committee tasked Kellogg with conducting research into the feasibility of the gaseous diffusion process for separating uranium isotopes. As the Manhattan Project began, Kellogg's vice president of engineering, Percival "Dobie" Keith, took charge of a newly created subsidiary of Kellogg, the Kellex Corporation.

Joseph Rotblat's Interview

Martin Sherwin: This is an interview with Professor Joseph Rotblat, R-O-T-B-L-A-T, at his office in London. Well it really was quite a production. Seven hours!

Joseph Rotblat: Yes, oh yes, quite a production.

Sherwin: I thought Sam Waterston played a marvelous part.

Rotblat: Who?

Sherwin: The person who played [J. Robert] Oppenheimer.

Ed Hammel's Interview

Martin Sherwin: The work must have been sort of very frustrating for a while, before that [Stanislaus] Ulam-[Edward] Teller breakthrough [on the hydrogen bomb].

Ed Hammel: Well, sure. There was— 

Sherwin: What were you doing at that time?

Hammel: At that point, I continued with having this group in charge of properties of plutonium. But one of the things that we were very interested in was the low temperature properties, the specific heat specifically, of plutonium.

Ames, IA

Several sites in Iowa played an important role during and after the Manhattan Project, including the Ames Laboratory at the Iowa State University where uranium production methods were developed, and the Burlington Atomic Energy Commission Plant, where atomic weapons were first assembled by the AEC.

California Institute of Technology

Before the war, the California Institute of Technology (Caltech) was a leading university in the fields of particle and nuclear physics. It was especially known for its experimental physicists. Many scientists who had important roles on the Manhattan Project were affiliated with Caltech, including J. Robert Oppenheimer, Richard Tolman, and Robert Bacher. In addition, a group working at Caltech under Charles Lauritsen directly assisted in the bomb-building effort, providing help manufacturing detonators that would be used in the atomic bombs. 

Louis Hempelmann Interview - Part 1

Martin Sherwin: Martin Sherwin, I am about to interview Dr. Hempelmann at Strong Memorial Hospital.

You know, simply from all of the Los Alamos records, but who told me you were at Strong? That was, I think, Dorothy McKibbin.

Louis Hempelmann:  Oh yeah.

Sherwin: No, she confirmed it. She said you were coming out to Santa Fe.

Hempelmann: Yeah.

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