What was in the Manhattan project in world war 2?

The Manhattan Project was a secret U.S. government research and development initiative during World War II, aimed at creating the first nuclear weapons. Initiated in 1942, it brought together some of the brightest scientists, including J. Robert Oppenheimer and Enrico Fermi, and involved collaboration between the U.S., the UK, and Canada. The project culminated in the successful development and detonation of the first atomic bomb in July 1945, which was later used in the bombings of Hiroshima and Nagasaki, leading to Japan's surrender. The project marked a significant technological and military advancement, reshaping global power dynamics.