lith .t "Smoke Puffs" --by Cliff Reiter Department of Mathematics Lafayette College; Easton, Pennsylvania ATTERNS SUGGESTPREDICTABILITY,and chaos suggests a randomness that defies prediction. Remarkably, these two things can happen at the same time. We will create an image that suggests a pattern of smoke puffs. This image was originally created by Nathan Carter, Rick Eagles, Steve Grimes, Andy Hahn and myself [2,3]. However, it hasn't been shown in public before. The randomness of the puffs and the overall pattern create an interesting visual tension. While we are motivated by the abstract problem and the beauty, there is no doubt that real phenomenon can be wild and patterned at the same time. You might imagine water moving quickly between a series of pillars or some other turbulent, but structured flow. A good case can be made supporting the view that we find sequences of notes in music beautiful when there is enough pattern to make the music feel almost inevitable but there are enough unexpected notes to make listening interesting and a delight. In a filture column we will look at creating computer music. You will be able to play simple sequences of notes and will also listen to
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