Manhattan
Manhattan Project
The first atomic bomb was developed during a top secret project in Word War II called "Manhattan".
There were no warnings. The Manhattan Project was a secret. This was the name of the research project that developed the atom bomb.
The Manhattan Project
To develop the atomic bomb for the USA.
the US army headed a secret team of scientists called the Manhattan project - they did the science, developed the ideas and worked with engineers to make the first atomic bomb on 1944-1945.
Los Alamos National Laboratory in New Mexico .
The top secret program to build an atomic bomb was called the Manhattan Project. It was so secret the top Generals and Admirals did not know about it. The people who worked on the project often did not know what they were working on. All the workers lived in places that were developed from the ground up and they could not talk about what they were doing. Even Vice President Truman did not know about it until after President Roosevelt died.
The atom bomb research and development were conducted under the Manhattan project.
Manhattan project
There were a number of top secret programs to build an atomic bomb. If you mean the secret plan of the US, it was called the Manhattan Project.
I believe it was the Manhattan Project