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      Knowledge is Power

      Scientific American August 1977

      The Amateur Scientist, August 1977

      Drops of water dance on a hot skillet and the experimenter walks on hot coals

      • By Jearl Walker on August 1, 1977

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      More in the August 1977 issue of Scientific American
      • Books, August 1977
      • Kangaroos
      • The Authors, August 1977
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