Image of the rotor blob of one million particles under the map z |--> 1/z^2. Rotors cycle NESW. The white disc in the center is the image of the complement of the occupied set. The monochromatic regions occur at lattice points, checkered regions at half lattice points, etc. Click for full-size image (3000x3000):




Image of the sandpile blob of one million particles under the same map:




Rotors cycling NEWS (original picture created by Tobias Friedrich):




Rotors cycling NWES (original picture created by Tobias Friedrich):




Directed rotors: even sites alternate NS, odd sites EW (original picture created by Matt Cook):



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