It was first dropped on people in Hiroshima, Japan, August 6th, 1945, then Nagasaki, Japan, August 9th, 1945, both by the US. However, the first test was in New Mexico (again by the US), but there the people were told that it was going to happen.
The first atomic bomb was created in the USA during the Second World War (Manhattan Project).
in my mom's "Vagina"
Fear that Nazi Germany might do it first.
the atomic bomb was not discovered, it was invented then built.
FDR never saw a working atomic bomb, he died before the first ones were built.
It was built in New Mexico.
in 1943
1943
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.
when Soviets explode first atomic bomb
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.
Dr RJ Oppenheimer.