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      Knowledge is Power

      Scientific American August 1896

      $250 Prize Essay Competition—Progress of Invention during the past Fifty Years

      1846 has an Hour' Chat With 1896

      • By Edmund Becker on August 1, 1896

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      More in the August 1896 issue of Scientific American
      • Australian Consolidation Locomotive
      • Magnetism at Low Temperatures
      • Recent Researches upon the Roentgen Rays
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