The Manhattan Project began in 1942 and ended in August 1947, with the establishment of the Atomic Energy Commission.
A rough estimate is that in this time 15 to 20 atomic bombs had been built, with 5 of those detonated, leaving a stockpile by the time the Manhattan Project ended of 10 to 15 atomic bombs.
America was in debt during the Manhattan project. The Manhattan project was led by the United States and produced the first atomic bombs during World War II.
Opennheimer
J. Robert Oppenheimer was in charge of the Manhattan Project, which was started by Franklin Delano Roosevelt. The Manhattan Project produced both atomic bombs.
The creation of the first Atomic bombs during WW2 as part of the Manhattan Project.
Manhattan experiment project produced the first atomic bombs in the course of World War II.
See website: Atomic Bombings of Hiroshima and Nagasaki.
The Manhattan Project, which was a research and development program during World War II, led to the creation of the first atomic bombs. The project was primarily based in the United States and resulted in the successful testing of the atomic bomb in New Mexico in 1945. The bombs developed under the Manhattan Project were later used in the bombings of Hiroshima and Nagasaki, ultimately leading to the end of the war in the Pacific.
The Manhattan Project - the development of the atomic bombs which were dropped on Japan.
Created the first Atomic Weapon (Nuclear Bomb). And ended WW2 with the dropping of 2 A-Bombs on Japan.
J. Robert Oppenheimer was the scientific director of the Manhattan Project, the research and development project that produced the first nuclear weapons during World War II. He played a crucial role in overseeing the design and creation of the atomic bombs dropped on Hiroshima and Nagasaki in 1945.
The project to build the atomic bomb was given the secret code-name of "The Manhattan Project", however the bombs were not built in Manhattan. Check wikipedia for details on actual locations.
The weapon was developed by the Manhattan Project during World War II. It derived its explosive power from the nuclear fission of uranium 235.