Yes
no, but they were involved as couriers to leak information on the bomb to the USSR.
I suggest reading Richard Rhodes book: The Making of the Atomic Bomb.
Albert Einstein did not directly contribute to making the atomic bomb. However, his famous equation, E=mc^2, which describes the relationship between mass and energy, laid the theoretical foundation for the development of atomic weapons. Einstein urged the United States government to research atomic energy and warned them of the potential dangers of nuclear weapons.
It made Roosevelt decide to make a Atomic Bomb because he said that Hitler was making a nuke
Albert Einstein did not directly work on making the atomic bomb. He did write a letter to President Roosevelt in 1939 warning of the potential of nuclear weapons, which led to the start of the Manhattan Project. However, it was scientists like J. Robert Oppenheimer and Enrico Fermi who led the research and development efforts to create the atomic bomb.
None, Einstein had no part in either inventing or making atomic bombs except to sign a letter to FDR that Leo Szilard had written. Leo Szilard is the inventor of both the atomic bomb and reactor.
None of the men involved with making "the bomb" were happy about it. They, more than any other living human being knew what doors they had opened (the atomic age).
The Making of the Atomic Bomb has 886 pages.
Albert Einstein's ideas lead to something more powerful than the atomic bomb. It lead to the nuclear bomb. The nuclear bomb blueprints spread to Japan,Russia, and China thus making this world a whole lot scarier.
Albert Einstein did not make the atomic bomb. Einstein himself did not even play a role in the development of the atomic bomb other than signing the letter to get Roosevelt to approve the making of it. He did help the United States Navy with some unrelated theoretical questions it was working on during the war. And girls wouldn't be smart enough. JK. But not really. Ok really.
Albert Einstein's ideas lead to something more powerful than the atomic bomb. It lead to the nuclear bomb. The nuclear bomb blueprints spread to Japan,Russia, and China thus making this world a whole lot scarier.
The ISBN of The Making of the Atomic Bomb is 0-671-44133-7.