Nuclear submarine nuclear-powered submarine was first proposed in the United States Navy by the Naval Research Laboratory's Ross Gunn in 1939. Construction of the world's first nuclear powered submarine was made possible by the successful development of a nuclear propulsion plant by a group of scientists and engineers at the Naval Reactors Branch of the Bureau of Ships and the Atomic Energy Commission. In July 1951 the U.S. Congress authorized construction of the first nuclear-powered submarine, "Nautilus", under the leadership of Captain Hyman G. Rickover, USN (sharing names with Captain Nemo's fictional submarine in Jules Verne's "Twenty Thousand Leagues Under the Sea",
The Sea of Ice 1824 expeditions to the North Pole. The two titles originally referred to the present work and another older work by Friedrich, now missing. The lost painting was shown in 1822 at the Dresden Academy exhibition under the title "A Wrecked Ship off the Coast of Greenland in the Moonlight. Own Invention". The present painting was first shown in 1824 at the Prague Academy exhibition under the title "An Idealized Scene of an Arctic Sea, with a Wrecked Ship on the Heaped Masses of Ice". In Friedrich's estate this work was described as "Ice Picture. The Disaster-stricken North Pole Expedition". The