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      Knowledge is Power

      Scientific American March 13, 1915

      The Relation of the Horse-Power to the Kilowatt

      Reasons for the Adoption of an Absolute and Invariable Standard of Power

      • March 13, 1915

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      More in the March 13, 1915 issue of Scientific American
      • Removing Particles of Metal from Wounds
      • Deformation of the Earth by the Moon
      • The Defense of Belgium by Inundation
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