United States.
The bomb was made by the combination of US, Canada and Australia. Robert Oppenheimer led the team.
There were few differences between the 2 atomic bombings. For example, the bomb used on Hiroshima was made of Plutonium whiles the Nagasaki bomb contained Uranium 235. Also More people died from the Hiroshima bomb than the Nagasaki bomb , mainly due to the size differences between the 2 bombs.
An ultimatum was issued to Japan from Potsdam, but no mention of atomic bombs was made in it as they were classified and the only people at Potsdam cleared to discuss them were Truman and Churchill.The first time the Japanese were told of the atomic bomb was after the bombing of Hiroshima.
Uranium 235
The "Manhatton Project" in New Mexico, US.
The American President, Harry Truman, made the decision to drop atomic bombs on the cities of Hiroshima and Nagasaki.
the atomic bomb that was dropped on hiroshima and nagasaki made an end to World War II and set a deterent to the enemies of the united states ;hey
== == The final decision was made by the US President at that time, who was Mr Truman.
The American President, Harry Truman, made the decision to drop atomic bombs on the cities of Hiroshima and Nagasaki.
The 'Fat Man' bomb which was dropped onto Hiroshima was made up of Plutonium. The 'Little Boy' bomb which was dropped onto Nagasaki was made up of Uranium 235.
fat man.
Hiroshima was a man made disaster that starts with the letter H. An atomic bomb dropped over Hiroshima caused loss of life and destruction.