John Francis Ropek this nuclear submarine, Ropek was involved in pioneering oceanographic studies under the polar ice cap of the North Pole, resulting in the report "Characteristics of Polar Ice Observed During the 1957 Arctic Cruise of the USS Nautilus" (Defense Technical Information Center 1958). As a scientist he published many technical papers, such as "US Navy Hydrographic Office synoptic and prognostic wave charts" (US Navy Hydrographic Office 1955), and "An Application of Naval Oceanographic Development to Inland Waters" (Defense Technical Information Center 1967). Later, Ropek was deputy director of the prediction division of the Naval Oceanographic Office. Late in life he lived
Arctic exploration of his sea plane, during the rescue operations. The first people to have without doubt walked on the North Pole were the Soviet party of 1948 under the command of Alexander Kuznetsov, who landed their aircraft nearby and walked to the pole. On August 3, 1958, the American submarine reached the North Pole without surfacing. It then proceeded to travel under the entire Polar ice cap. On March 17, 1959 the surfaced on the North Pole and dispersed the ashes of explorer Sir Hubert Wilkins. These journeys were part of military explorations stimulated by the Cold War context. On April