History of submarines few years before the US, and paralleled subsequent US development in this area. In the 1950s, nuclear power partially replaced diesel-electric propulsion. The sailing of the first nuclear-powered submarine, the USN ""Nautilus"" in 1955 was soon followed by similar British, French and Russian boats. Equipment was also developed to extract oxygen from sea water. These two innovations, together with inertial navigation systems, gave submarines the ability to remain submerged for weeks or months, and enabled previously impossible voyages such as the crossing of the North Pole beneath the Arctic ice cap by the USS "Nautilus" in 1958. Most of the
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