The manhattan project was the allied effort to develop the atomic bomb during world war ii led by maj gen leslie groves and j robert oppenheimer, it developed research facilities across the united states the project was successful and made the atomic bombs used at hiroshima and nagasaki. The resulting manhattan project absorbed $2,000,000,000 of the $3,850,000,000 spent by the united states on r and d in world war ii churchill, too, approved a nuclear program, code-named the directorate of tube alloys, in britain’s dark days of 1941.
Start studying america and the war at home learn vocabulary, terms, and more with flashcards, games, and other study tools what was the main accomplishment of the manhattan project during world war ii the development of the atomic bomb why were materials such as scrap iron, rubber, and aluminum recycled during the war.
April 27, 1945: the target committee of the manhattan project select four cities as possible targets for the atomic bomb may 8, 1945 : war ends in europe may 25, 1945: leo szilard attempts to warn president truman in person concerning the dangers of atomic weapons. The manhattan project - the making of the atomic bomb during world war 2, and insights from it the manhattan project leslie groves, an army engineer who distinguished himself in overseeing the initial construction of the pentagon, was appointed to command the manhattan project.
As the manhattan project grew closer to producing a bomb, the us government began to consider its wartime options in may 1945, secretary of war henry l stimson , with the approval of president harry truman, established the interim committee to make recommendations on wartime use of the bomb and post-war organization of atomic energy. The manhattan project was the codename for the secret us government research and engineering project during the second world war that developed the world’s first nuclear weapons president franklin roosevelt created a committee to look into the possibility of developing a nuclear weapon after he received a letter from nobel prize laureate albert einstein in october 1939.
The manhattan project was not the only effort to create an atomic bomb during world war ii much of the theory behind fission had been published before the war and was internationally available. Atomic bomb and the surrender of japan to end the second world war as the top story of the twentieth century the advent of nuclear weapons, brought about by the manhattan project, not only helped bring an end to world war ii but ushered in the atomic age and determined how the next war—the cold war—would be fought.
The manhattan project was a research and development undertaking during world war ii that produced the first nuclear weapons it was led by the united states with the support of the united kingdom and canada from 1942 to 1946, the project was under the direction of major general leslie groves of the us army corps of engineers. The atomic bombings of hiroshima and nagasaki and the surrender of japan were the last acts of the second world war the most destructive weapon in the history of combat had helped bring an end to the most destructive conflict in human history the manhattan project and the devastation that its.