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      Knowledge is Power

      Scientific American September 25, 1920

      Timing the Hundred-Mile-Per-Hour Racer

      • By Ralph Howard on September 25, 1920

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      More in the September 25, 1920 issue of Scientific American
      • The Disaster to One of Our Latest Submarines
      • The Oil-Field Geologist
      • New Books, Etc. - September 25, 1920
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