United States submarine Nautilus during a polar expedition in the Arctic region. Nautilus in open waters with several men on the deck as they lower boom. A man on knees on the deck as he works with a small line. Ice in the background. Port bow side of the submarine as it moves ahead through open waters. Nautilus moves ahead pushing ice chunks with bow.
United States submarine Nautilus during a polar expedition in the Arctic region. A man turns valves in the engine room and checks a gauge. Nautilus pushes ice with bow. Water surface, ice canopy and broken ice as seen through a periscope. The submarine moves along under the ice. Nautilus on surface with ice around it. A man on ice in the foreground as he looks at the submarine in scattered ice.
Construction of United States airship Akron. Motor compartments in the airship. Crew's bunk room under construction inside Akron. One out of the eight engines being installed by men. Men work on fuel tanks, condensers and propeller shaft A covered fin is lifted in a sling. Three vertical fins being installed. Men coat the outer cover with silver. Interiors of the control room with control panel. Thousands of steel bottles filled with helium piled up. Helium being taken away with hose for storage in underground tanks. Mobile mooring mast and mooring cone. Mooring cap on nose of Akron airship.
Maiden flight of United States airship Akron. USS Akron in flight and aerial view of a large crowd gathered at the launching ceremony of Akron. Wife of President Herbert Hoover, Mrs. Louise Henry Hoover arrives at the ceremony to launch the airship. She speaks on the microphone during the ceremony. She pulls a long line to release a trap door and pigeons from Akron.
Maiden flight of United States airship Akron. Lieutenant Settle, Navy Chief's inspection staff signs the receipt for the Akron. He congratulates President L.W. Litchfield and Dr. Karl Arnstein. Airship Akron in flight while on its way to Lakehurst.
United states submarine Nautilus in the Arctic region during a polar expedition. Ice floats on surface of the water. A man at the bow of the submarine Nautilus is pulled aboard with a line. Two other men help him. A diver being helped by a man in the engine room to put on his helmet. The diver goes under water as the man holds an air hose. The diver comes out and removes his helmet. A man puts a thermometer in the diver's mouth to record his body temperature.
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