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The first atomic bomb was produced by the US in 1945under the program known as the Manhattan Project (controlled and uncontrolled nuclear fission). The programs involved in building the bomb ultimately included 14 separate locations in the US. In December, 1942, a fission reaction was successfully initiated at the University of Chicago by Enrico Fermi and others. Work on the actual bomb(s) was conducted at Los Alamos National Laboratory in New Mexico under the direction of physicist J. Robert Oppenheimer. On July 16, 1945, the first atomic bomb was test detonated at Alamagordo, NM. Twenty-one days later, the city of Hiroshima, Japan, was destroyed by a nuclear explosive (August 6). On August 9, 1945, the city of Nagasaki was destroyed by a second bomb of a different type.

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Q: When was the atomic bomb first built?
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Related questions

Who built the first atomic bomb?

The first atomic bomb was created in the USA during the Second World War (Manhattan Project).


Where was the world's first atomic bomb was built?

in my mom's "Vagina"


Why was the atomic bomb built?

Fear that Nazi Germany might do it first.


How did atomic theory lead to the atomic bomb discovery?

the atomic bomb was not discovered, it was invented then built.


What was Franklin D Roosevelt's response to the atomic bomb?

FDR never saw a working atomic bomb, he died before the first ones were built.


Where was the atomic bomb built?

It was built in New Mexico.


When was the atomic bomb built?

in 1943


When did the atomic bomb was built?

1943


What project invented the atomic bomb?

The atomic bomb was not invented by a project, it was invented by Leo Szilard in 1933.However the Manhattan Project built the first ones in 1945.


Soviets explode their first atomic bomb?

when Soviets explode first atomic bomb


When was the first megaton atomic bomb built?

A pure fission atomic bomb with a yield of a megaton or more is theoretically impossible. The problem is that the chain reaction would happen spontaneously before the device could even be completely built and the bomb parts would melt, resulting in a fizzle and killing everyone building it.The first fusion atomic bomb (commonly called a hydrogen bomb) was tested in 1952 as Ivy Mike and had a 10 megaton yield. The highest yield pure fission atomic bomb ever built was also tested in 1952 as Ivy King and had a 500 kilotons yield.


Which man was the leader of the scientists and engineers who built the first American atomic bomb?

Dr RJ Oppenheimer.