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      Celebrate Math Awareness Month

      Scientific American April 1988

      Computer Recreations, April 1988

      An ancient rope-and-pulley computer is unearthed in the jungle of Apraphul

      • By A. K. Dewdney

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      More in the April 1988 issue of Scientific American
      • Bibliography, April 1988
      • Deeply Moved
      • Letters to the Editors, April 1988
      View Full Contents
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