Constant-Addition Continuous Cellular Automaton
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At each step, the color of each cell is determined by taking the average of the cell and its two neighbors, then adding a constant, but wrapping around if the result is greater than one. For small values of the constant, this can be used as a simple model of boiling.
Contributed by: Stephen Wolfram (March 2011)
Open content licensed under CC BY-NC-SA
The behavior of the system can depend very sensitively on the precise value of the constant that is added.