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USS Seawolf (SS-197)
USS ''Seawolf'' (SS-197), a , was the second submarine of the United States Navy named for the seawolf. Construction and commissioning ''Seawolf''′s keel was laid down on 27 September 1938 by the Portsmouth Navy Yard in Kittery, Maine. She was launched on 15 August 1939, sponsored by Mrs. Syria Florence Kalbfus, wife of Admiral Edward C. Kalbfus, and commissioned on 1 December 1939, Lieutenant Frederick B. Warder in command. Service history Inter-war period After fitting out, ''Seawolf'' departed Portsmouth, New Hampshire on 12 April 1940 for her shakedown cruise, which lasted until 21 June and took her as far south as the Panama Canal Zone. ''Seawolf'' was next assigned to the Pacific Fleet, home ported at San Diego. In Autumn 1940, she proceeded to Manila Bay and operated from the Cavite Navy Yard. World War II First through fourth war patrols When war with Japan began, the submarine readied for sea and was on her first war patrol from 8–26 December 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mare Island Navy Yard
The Mare Island Naval Shipyard (MINSY) was the first United States Navy base established on the Pacific Ocean. It is located northeast of San Francisco in Vallejo, California. The Napa River goes through the Mare Island Strait and separates the peninsula shipyard ( Mare Island, California) from the main portion of the city of Vallejo. MINSY made a name for itself as the premier U.S. West Coast submarine port as well as serving as the controlling force in San Francisco Bay Area shipbuilding efforts during World War II. The base closed in 1996 and has gone through several redevelopment phases. It was registered as a California Historical Landmark in 1960, and parts of it were declared a National Historic Landmark District in 1975. Beginnings In September 1849, Lieutenant Commander William Pope McArthur was placed in command of the US survey schooner ''Ewing'', which had been brought around Cape Horn to the West Coast by Lieutenant Washington Allon Bartlett. Upon reaching Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battery (electricity)
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell. Primary (single-use or "disposable") batteries are used once and discarded, as the electrode materials are irreversibly changed during discharge; a common example is the alkaline battery us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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