Answer: Los Alamos.
Also, it was tested at White Sands.
In addition to the bombs at Hiroshima and Nagasaki, both of which were developed by the Manhattan Project, the team also successfully detonated a bomb during the Trinity test on July 16, 1945, in New Mexico. (see: http://www.answers.com/topic/manhattan-project)
In nagasaki
The Manhattan Project was primarily based in three main locations: Los Alamos, New Mexico; Oak Ridge, Tennessee; and Hanford, Washington. Each site played a specific role in the development and production of the atomic bombs used during World War II.
The primary laboratory of the Manhattan Project was located at Los Alamos, New Mexico. This site served as the central hub for research and development of atomic weapons. Additional key facilities were also established at Oak Ridge, Tennessee, and Hanford, Washington, for uranium enrichment and plutonium production, respectively.
The atomic bomb was not developed in Manhattan, but was developed by the Manhattan Project. The project was headed by General Leslie R. Groves Jr. with Robert J. Oppenheimer as scientific director and had several development sites across the United States. The primary facilities were Los Alamos, New Mexico, Oak Ridge, Tennessee, and the Hanford Site in Washington state. The reason the project was named Manhattan Project was that its original administrative offices were in Manhattan, at the existing US Army Corps of Engineers offices, until they were relocated to Oak Ridge, Tennessee when adequate facilities for such offices had been built. But the name Manhattan stuck (probably partly because it made a good "cover", hiding the purpose/location of the project - as the name "Radiation Lab" obscured the project working on RADAR).
Oak Ridge, Tennessee was established as the production site for the Manhattan Project that developed the atomic bomb during World War II. Oak Ridge's nicknames include the Secret City.
The Trinity Site is the location in New Mexico where the first atomic bomb was detonated on July 16, 1945, as part of the Manhattan Project. It marked the beginning of the atomic age and was a crucial milestone in the development of nuclear weapons. The site is now open to the public for bi-annual tours.
The Trinity project was the code name of the nuclear test in 1945. It was created because of the Manhattan Project. It took place in the Jornada del Muerto desert.
No, Einstein had no involvement in the Manhattan Project (or any other war related work as he was a pacifist).
The atomic bomb was developed at Los Alamos.
While considerable scientific and theoretical work had begun as early as1939, the Army Corps of Engineers set up the Manhattan EngineerDistrict in August of 1942 and advanced Colonel Leslie R. Groves to therank of Brigadier General one month later and placed him in charge.Groves was responsible for establishing the Oak Ridge site and LosAlamos, but the scientific effort was led by J. Robert Oppenheimer.
The first nuclear explosion occurred at the Trinity test site in New Mexico, USA on July 16, 1945. It was part of the Manhattan Project, the secret American program to develop the atomic bomb during World War II.