Hyman George Rickover (January 27, 1900 – July 8, 1986) was a United States Navy admiral who directed the original development of naval nuclear propulsion and controlled its operations for three decades as director of Naval Reactors. This earned him the nickname "Father of the Nuclear Navy". In addition, he oversaw the development of the Shippingport Atomic Power Station, the world's first commercial pressurized water reactor used for generating electricity.
With 63 years of active duty, Rickover is the longest serving naval officer in U.S. history as of this writing. He was made a four-star admiral in 1973. However, throughout much of his career, Rickover maintained an iron grip on the nuclear reactor operations, which was seen as increasingly detrimental to the program and the Navy overall. After surviving multiple attempts by the U.S. Navy to force his retirement, Rickover finally surrendered to retirement in 1982. He died in 1986 after a series of strokes.
In early 1946, PresidentJoe Steele learned of German attempts to develop a new type of bomb using uranium. He had Captain Hyman Rickover research the matter to determine if such a bomb was possible. With the information Rickover provided, Steele confronted Albert Einstein who admitted he had kept this information from Steele. After ordering Einstein's arrest, Steele had Rickover (who'd been present for the confrontation) begin a project to develop an atomic bomb.
In mid-1949, Captain Rickover's work came to fruition. On August 6, 1949, a B-29 dropped an atomic bomb on the North Japan city of Sendai. Three days later, the Soviets dropped a retaliatory bomb on the South Japan city of Nagano. The fear of tit for tat bombings of cities led to end of the Japanese War shortly thereafter with status quo ante bellum as a result.
Nevertheless, Rickover was promoted to admiral for the successful development of the bomb. He had used a number of physicists who had been encamped as wreckers so Teller, Feynman and Cohen were freed as a result.