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      Celebrate Math Awareness Month

      Scientific American January 1995

      50 and 100 Years Ago: Plane Locating Device and Forest Management Service

      Articles from the Scientific American archive

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      More in the January 1995 issue of Scientific American
      • Daisy, Daisy, Give me Your Answer, Do
      • Ensuring the Longevity of Digital Documents
      • Invasion of the Bean Counters
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