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      Knowledge is Power

      Scientific American April 03, 1915

      The Submarine at Sea

      Ingenious Construction and Appliances by Which the Submarine Has Obtained Its Present Efficiency
      [Includes cross-sections of the typical German submarine and a Laurenti type]

      • April 3, 1915

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      More in the April 03, 1915 issue of Scientific American
      • Location Of Motorcycle Power Plant Troubles
      • More Mysteries of Ultra-violet Light
      • Producing the Effective Temperature of the Sun, World's Largest Soup Kitchen and more
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