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• n  ringing tuned bells in a fixed order that is continually changing

News & Articles

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• The Mathematics of Change Ringing and Peal Bells
  Change ringing, in which a band of ringers plays long sequences of permutations on a set of peal bells, is a little-known but surprisingly rich and beautiful acoustical application of mathematics -- Read more on ScientificAmerican.com
  Feb. 18, 2014 - Scientific American