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The Manhattan Project Heritage Preservation Association, Inc. "Preserving, Exhibiting, Interpreting and Teaching the History of the Manhattan Project" |
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Einstein/Sachs Document Collection
| This series of 20 documents represent the complete written communication that took place between President Roosevelt and the scientific community (represented by Albert Einstein, Leo Szilard, Edward Teller, and Eugene Wigner) in the Fall of 1939. This communication initiated America's pursuit of developing an atomic bomb. To download a complete set of the below documents in PDF format, click on the button below: |
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Images 1 to 20 |
| Document 1 | Document 2 | Document 3 | Document 4 | Document 5 |
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| Letter from Albert Einstein to President Roosevelt - Advising of Importance of Uranium in Making a Bomb - Aug. 2, 1939 - Page 1 of 2 | Letter from Albert Einstein to President Roosevelt - Advising of Importance of Uranium in Making a Bomb - Aug. 2, 1939 - Page 2 of 2 | Letter from Alexander Sachs to President Roosevelt - Asking for Permission to Meet and Present Letter from Albert Einstein - Oct. 11, 1939 - Page 1 of 3 | Letter from Alexander Sachs to President Roosevelt - Asking for Permission to Meet and Present Letter from Albert Einstein - Oct. 11, 1939 - Page 2 of 3 | Letter from Alexander Sachs to President Roosevelt - Asking for Permission to Meet and Present Letter from Albert Einstein - Oct. 11, 1939 - Page 3 of 3 |
| Document 6 | Document 7 | Document 8 | Document 9 | Document 10 |
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| Memo from President Roosevelt to his Secretary, General Edwin Watson, Requesting a Thank you Note be Sent to Albert Einstein - Oct. 13, 1939 | Thank you Cover Letter to Albert Einstein from F.D.R.'s Secretary, General Edwin Watson on Behalf of President Roosevelt - Oct. 17, 1939 | Letter to Albert Einstein from President Roosevelt Thanking Him for the Information that He Provided - Oct. 19, 1939 | Memorandum from Leo Szilard - One of Three Attachments to the Alexander Sach's Letter - Page 1 of 4 | Memorandum from Leo Szilard - One of Three Attachments to the Alexander Sach's Letter - Page 2 of 4 |
| Document 11 | Document 12 | Document 13 | Document 14 | Document 15 |
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| Memorandum from Leo Szilard - One of Three Attachments to the Alexander Sach's Letter - Page 3 of 4 | Memorandum from Leo Szilard - First of 3 Attachments to the Alexander Sach's Letter - Page 4 of 4 | Neutron Production and Absorption in Uranium - by H. L. Anderson, E. Fermi, & L. Szilard - 2nd of 3 Attachments to the Alexander Sach's Letter - Page 1 of 4 | Neutron Production and Absorption in Uranium - by H. L. Anderson, E. Fermi, & L. Szilard - 2nd of 3 Attachments to the Alexander Sach's Letter - Page 2 of 4 | Neutron Production and Absorption in Uranium - by H. L. Anderson, E. Fermi, & L. Szilard - 2nd of 3 Attachments to the Alexander Sach's Letter - Page 3 of 4 |
| Document 16 | Document 17 | Document 18 | Document 19 | Document 20 |
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| Neutron Production and Absorption in Uranium - by H. L. Anderson, E. Fermi, & L. Szilard - 2nd of 3 Attachments to the Alexander Sach's Letter - Page 4 of 4 | Instantaneous Emission of Fast Neutrons in the Interaction of Slow Neutrons with Uranium - by L. Szilard & W. Zinn - 3rd of 3 Attachments to the Alexander Sach's Letter - Page 1 of 3 | Instantaneous Emission of Fast Neutrons in the Interaction of Slow Neutrons with Uranium - by L. Szilard & W. Zinn - 3rd of 3 Attachments to the Alexander Sach's Letter - Page 2 of 3 | Instantaneous Emission of Fast Neutrons in the Interaction of Slow Neutrons with Uranium - by L. Szilard & W. Zinn - 3rd of 3 Attachments to the Alexander Sach's Letter - Page 3 of 3 | Letter of Analysis of the Einstein/Sachs Communication with President Roosevelt |
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