ALS, one page, 8.5 x 11, August 27, 1952. Handwritten letter to Miss Young, in full: "I have your letter of August 25 concerning the publication of the paper 'Experimental Production of a Divergent Chain Reaction.' I do not plan to be back to Chicago before the 20th of September. Therefore it might save time if you were to send to me here the revised manuscript. I want to thank you very much for your help in this matter that I have greatly appreciated." In fine to very fine condition.
The production of the first nuclear chain reaction in Chicago-Pile 1 on December 2, 1942, was a major milestone in the eventual utilization of nuclear energy for the economic production of power. In his monthly report of the Physics Division of the Metallurgical Project, Fermi described this historic event very simply: 'The activity of the Physics Division in the past month has been devoted primarily to the experimental production of a divergent chain reaction. The chain reacting structure has been completed on December 2 and has been in operation since then in a satisfactory way. A program of tests on the operating conditions of the chain reacting unit and experiments for the investigation of the various radiations inside and outside the pile is in progress. The results will be reported as soon as possible.'
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