On august 6, 1945, the japanese city of hiroshima was destroyed by a nuclear weapon, an atomic bomb dropped by the united states three days later, a second atomic bomb was dropped on the city of nagasaki five days after that, japan unconditionally surrendered to the united states, bringing an end to world war ii. 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. New scientist reported in 2005: the us decision to drop atomic bombs on hiroshima and nagasaki in 1945 was meant to kick-start the cold war rather than end the second world war, according to two nuclear historians who say they have new evidence backing the controversial theory. The atomic bomb was first used in warfare athiroshima and nagasaki in august 1945and the bomb played a key role in ending world war two the atomic bomb (a bomb), created via the manhattan project, was first exploded at the top secret base of alamogordo on july 16th, 1945. During the second world war, the united states, britain, germany and the ussr were all engaged in scientific research to develop the atomic bomb.
History of the atom bomb history of the atom: a quick end of world war ii and possession by the us during this phase of the cold war. Something changed forever on august 6, 1945 which had prompted the us’ entry into world war ii and he wanted the atomic bomb to be the launch of the cold war. This photo dated 1948 shows the devastated city of hiroshima some three years after the us dropped an atomic bomb on the city, august 06, 1945, at the end of world war ii (afp/afp/getty images) this photo dated 1948 shows children wearing masks to protect themselves from radiation in the devastated city of hiroshima nearly.
Watch video atomic bomb use in world war ii professor peter kuznick talked about the development and use of the atomic bomb during world war iihe argued that there were others ways, such as changing surrender terms, which could have been used to end the war in the pacific instead of dropping atomic bombs. Though the dropping of the atomic bomb on japan marked the end of world war ii, many historians argue that it also ignited the cold war since 1940, the united states had been working on developing an atomic weapon, after having been warned by albert einstein that nazi germany was already conducting research into nuclear weapons. At the start of world war ii in 1939 the atomic bomb had not yet been invented however, scientists discovered about that time that a powerful explosion might be possible by splitting an atom this type of bomb could destroy large cities in a single blast and would change warfare forever.
The bomb that changed the world the development of the atomic bomb has itself become a story that victory in world war ii for america and her allies. It was dropped to make japan surrender in world war ii the development of the atomic bomb began to be centralized when the scientists realized the magnitude of it.
Joint chiefs of staff knowledge of the atom bomb and chronology regarding truman from 6/45 -7/24/45 the franck report, june 11, 1945 glenn t seaborg to ernest o lawrence, june 13, 1945 recommendations on the immediate use of nuclear weapons, by the scientific panel of the interim committee on nuclear power, june 16, 1945. With the development of the atomic bomb the destruction during wwi established a precedent for using atomic weapons and saturation bombing in world war ii. The decision to use the bomb the modern nuclear arsenals and the struggle to control nuclear weaponry have brought new significance and controversy to the american use of the atomic bomb in world war ii.
Why the germans failed to accomplish a nuclear bomb werner heisenberg before the war  there are many arguments as to why nazi germany was unable to develop an atomic bomb during world war ii. Atomic bomb and end of world war ii in their present form these bombs are now in production and even more powerful forms are in development it is an atomic bomb. What impact did the us development of the atomic bomb have on world war ii a after the us dropped atomic bombs on two major cities in japan, japan surrendered b after the us dropped atomic bombs on two major cities in germany, germany surrendered. Nuclear research all started when the japanese bombed pearl harbor, and the united states entered into world war ii when the united states realized that germany attempted to build an atomic bomb, americans began to concentrate on their research about creating an atomic bomb more heavily president.