Pinwheel
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.
Pinwheel | |||||||||||
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Pattern type | Oscillator | ||||||||||
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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 | ||||||||||
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See also
References
- "Catherine wheel". The Life Lexicon. Stephen Silver. Retrieved on December 3, 2018.
- Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
External links
- Pinwheel at the Life Lexicon
- 35P4.10 at Heinrich Koenig's Game of Life Object Catalogs
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