The leading scientists involved in the Manhattan Project included:
- J. Robert Oppenheimer: Served as the scientific director of the Manhattan Project and played a crucial role in coordinating the efforts of various teams.
- Leo Szilard: Hungarian-American physicist who played a key role in initiating the project and persuading Albert Einstein to sign the famous letter to President Franklin D. Roosevelt warning about the potential development of atomic bombs by Nazi Germany.
- Enrico Fermi: Italian-American physicist known for his work on neutron interactions, nuclear fission, and the first nuclear reactor.
- Lise Meitner: An Austrian-Swedish physicist whose calculations with her nephew Otto Frisch provided the theoretical foundation for understanding nuclear fission. She had to flee Germany due to her Jewish heritage and did not directly contribute to the Manhattan Project.
- Otto Frisch: Meitner's nephew who was part of the British Tube Alloys project, a parallel effort to develop atomic weapons in the United Kingdom.
- Robert Bacher: American physicist who joined the Manhattan Project and became a key figure in the development and testing of the implosion-type atomic bombs.
- Richard Feynman: Theoretical physicist who made important contributions to theoretical physics and quantum electrodynamics.
- Edward Teller: Hungarian-American physicist who later became known as the "father of the hydrogen bomb."
In addition to these scientists, thousands of engineers, technicians, and support personnel were involved in the project, which included establishing production facilities and conducting numerous experiments and tests.
