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The US took over three years to go from concept of designing an atomic bomb to the actual production of three atomic bombs in World War 2. They started discussion in 1941 with scientists who had warned them Germany was building an atomic bomb. They began setting up a place for production in 1942. In August of 1945 the bombs were dropped on Nagasaki and Hiroshima in Japan.

The atomic bombs were built by the thousands during the cold war. After the cold war, thousands were dismantled but there are still atomic missiles around world wide.

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Q: How long has the US been perparing the atomic bomb?
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Related questions

How long does it take for the radiation to disappear from an area that has been effected by an atomic bomb?

decades


How did the atomic bomb result in japan?

It didn't. Japan existed long before the atomic bomb


How long had the US been at war with japan before you used the atomic bomb?

from Dec 1941 to Aug 1945


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All the early atomic bombs were 10 feet long, the length of the longest bomb that fit in the B-29 bombbay.


What were the long term result in America after the atomic bomb?

The long term result of the use of the Atomic bomb by the US in WW2, has been building new and larger nuclear weapons/bombs. Despite the advances in nuclear activity, it can clearly be seen that the "fear" of using the mass destruction of nuclear weapons has been that no more nuclear or atomic bombs have ever been used again.


How was the atomic bomb developed?

The story is too long to tell here. Read Richard Rhode's book: The Making of the Atomic Bomb.


How atomic bomb came into existence?

The story is long and complicated, too long to do justice to it here. I suggest reading Richard Rhodes' book The Making of the Atomic Bomb.


how long was fat boy the atomic bomb?

128.375 inches


How long did it take America to perfect the atomic bomb?

See: Atomic bombings of Hiroshima and Nagasaki


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The US were working on the bomb since 1941 up to 1945 when the first bomb tested.


How long is temporary blindness after watching an atomic bomb explode?

I don't think anyone has seen an atomic bomb and lived,but so say about 3 to 4 days.


Why is an atomic bomb called a nuke?

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