Pinwheel

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Pinwheel
6b2o4b$6b2o4b2$4b4o4b$2obo4bo3b$2obo2bobo3b$3bo3b2ob2o$3bobo2bob2o$4b 4o4b2$4b2o6b$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 4 0 0 GPS 2 THUMBSIZE 2 ]]
Pattern type Oscillator
Oscillator type Billiard table
Family Pinwheel
Number of cells 35
Bounding box 12×12
Period 4
Mod 1
Heat 4.0
Volatility 0.20
Strict volatility 0.20
Discovered by Simon Norton
Year of discovery 1970

Pinwheel (or Catherine wheel[1]) is a period-4 oscillator found by Simon Norton in April 1970.[2] It is a billiard table configuration and possibly the first period 4 oscillator discovered.

See also

References

  1. "Catherine wheel". The Life Lexicon. Stephen Silver. Retrieved on December 3, 2018.
  2. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.

External links

  • 35P4.10 at Heinrich Koenig's Game of Life Object Catalogs