The letter to President Roosevelt signed by Albert Einstein is the first document in the long and fascinating history of nuclear weapons in which science calls for the help of politicians and the military to achieve the grand American atomic project. Shaken by the frightening effect of the bombs dropped on Hiroshima and Nagasaki, Robert Oppenheimer, the "father" of the atomic bomb, resigned from the Los Alamos Laboratory only two months later. He was among the first to realize that the nuclear "toy" he had been working on day and night had fallen into the hands of politicians and soldiers for good. This is a great book about the geniuses and the efforts to make the first Atom Bomb. With a lot of genuine illustrations from many books dealing with this era. Saga Publishing.2019.