22 items in this album on 2 pages.

Letter to president Roosevelt drafted by physicist Leó Szilárd with assistance from Edward Teller and Eugene Wigner and then signed by Albert Einstein urging the development of nuclear energy, 2 Aug 1939, page 1 of 2Letter to president Roosevelt drafted by physicist Leó Szilárd with assistance from Edward Teller and Eugene Wigner and then signed by Albert Einstein urging the development of nuclear energy, 2 Aug 1939, page 2 of 2A page out of a Manhattan Project scientistGroves and Oppenheimer at Los Alamos, New Mexico, United States, 1940s
Letter to president Roosevelt drafted by physicist Leó Szilárd with assistance from Edward Teller and Eugene Wigner and then signed by Albert Einstein urging the development of nuclear energy, 2 Aug 1939, page 1 of 2Letter to president Roosevelt drafted by physicist Leó Szilárd with assistance from Edward Teller and Eugene Wigner and then signed by Albert Einstein urging the development of nuclear energy, 2 Aug 1939, page 2 of 2A page out of a Manhattan Project scientist's notebook, noting the world's first controlled, self-sustaining nuclear chain reaction, achieved on 2 Dec 1942Groves and Oppenheimer at Los Alamos, New Mexico, United States, 1940s
Alpha Track Calutron at the Y-12 Plant at Oak Ridge, Tennessee, United States, 1944-1945Alpha Track Calutron diffusion vacuum pumps at the Y-12 Plant at Oak Ridge, Tennessee, United States, 1944-1945Control panels and operators for calutrons at the Y-12 Plant in Oak Ridge, Tennessee, United States; the woman closest to the camera was identified as Gladys OwensCasings for the
Alpha Track Calutron at the Y-12 Plant at Oak Ridge, Tennessee, United States, 1944-1945Alpha Track Calutron diffusion vacuum pumps at the Y-12 Plant at Oak Ridge, Tennessee, United States, 1944-1945Control panels and operators for calutrons at the Y-12 Plant in Oak Ridge, Tennessee, United States; the woman closest to the camera was identified as Gladys OwensCasings for the 'Thin Man' and 'Fat Man' atomic bomb designs, Muroc Army Air Field (later Edwards Air Force Base), California, United States, Mar 1944
Scene of shift change at the Y-12 uranium enrichment facility in Oak Ridge, Tennessee, United States, circa 1945British personnel dismantling the experimental nuclear pile at Haigerloch near Stuttgart, Germany, Apr 1945Oppenheimer inspecting nuclear device Physicist Norris Bradbury (left) with atomic bomb
Scene of shift change at the Y-12 uranium enrichment facility in Oak Ridge, Tennessee, United States, circa 1945British personnel dismantling the experimental nuclear pile at Haigerloch near Stuttgart, Germany, Apr 1945Oppenheimer inspecting nuclear device 'Gadget', Alamogordo, New Mexico, United States, mid-Jul 1945Physicist Norris Bradbury (left) with atomic bomb 'Gadget', 15 Jul 1945
Preparing the atomic bomb “The Gadget” atomic device on 15 Jul 1945 as it being readied for the Trinity Test the following day, Alamogordo, New Mexico, United States.Atomic bomb Early stage of the nuclear explosion during Operation Trinity, 16 Jul 1945
Preparing the atomic bomb 'Gadget' for Operation Trinity, 15 Jul 1945“The Gadget” atomic device on 15 Jul 1945 as it being readied for the Trinity Test the following day, Alamogordo, New Mexico, United States.Atomic bomb 'Gadget' exploding during Operation Trinity, 16 Jul 1945Early stage of the nuclear explosion during Operation Trinity, 16 Jul 1945
Early stage of the nuclear explosion during Operation Trinity, 16 Jul 1945, photo 2 of 2Aerial view of the aftermath of Operation Trinity, 17 Jul 1945; note the smaller crater on bottom right, which was the crater left by the 7 May 1945 test with 108 tons of TNTThe Szilárd PetitionOppenheimer and Groves immediately after Operation Trinity, circa Aug 1945, photo 1 of 2
Early stage of the nuclear explosion during Operation Trinity, 16 Jul 1945, photo 2 of 2Aerial view of the aftermath of Operation Trinity, 17 Jul 1945; note the smaller crater on bottom right, which was the crater left by the 7 May 1945 test with 108 tons of TNTThe Szilárd PetitionOppenheimer and Groves immediately after Operation Trinity, circa Aug 1945, photo 1 of 2

22 items in this album on 2 pages.

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