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      Knowledge is Power

      Scientific American March 1929

      The Devil Motorizes

      A Hades of Iron and Steel, and Assorted Imps, Occupy the Stage

      • March 1, 1929

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      More in the March 1929 issue of Scientific American
      • Airplane Design Competition, A New Type of Landing Field and more
      • Drained Tract is New World Netherlands
      • Planes for Private Flying
      View Full Contents
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