Dr. Jonathan "Jon" Osterman is a vigilante and the only character with superpowers. He was originally a physicist who was transformed into a blue, irradiated powerful being after he was disintegrated in an Intrinsic Field Subtractor in 1959. He had returned to the chamber to retrieve his girlfriend's watch (which he had repaired), and was accidentally locked inside when the Subtractor started automatically. Osterman was blown into atoms, with nothing left of his body. Within a few months, his disembodied consciousness managed to reconstruct a physical body for itself, after several hideous partial reconstructions. Following his reanimation, he is immediately pressed into service by the United States government, which gives him the name Doctor Manhattan, after the Manhattan Project. Though he dabbles briefly in crime-fighting, his greatest influence is to grant the U.S. a strategic advantage over the Soviet Union during the Cold War, with his most significant action taking place after he is personally asked by President Richard Nixon to intervene in the Vietnam War, leading to an unqualified victory for the U.S. with the defeat of North Vietnam and the Vietcong, preventing the collapse of the Saigon government. Since he works for the U.S. government, he is exempt from the provisions of the Keene Act, but spends much of his time doing advanced technology research and development, and physics research. He is single-handedly responsible for the shift to electric-powered vehicles (by synthesizing the needed elements and chemicals himself) and Veidt credits him with causing a huge leap forward in myriad areas of science and technology. As a result, the technology of the alternative 1985 of the "Watchmen" universe is far more advanced. After the death of his father in 1969, he does not conceal his birth name and is referred to as "Jon" or "Dr. Osterman".