Almosymmetric
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| Almosymmetric | |||||||||
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 17 | ||||||||
| Bounding box | 9 × 8 | ||||||||
| Period | 2 (mod: 1) | ||||||||
| Heat | 22 | ||||||||
| Volatility | 0.79 | 0.79 | ||||||||
| Kinetic symmetry | n-e | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | 1971 | ||||||||
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Almosymmetric is a period-2 oscillator that was found in 1971.[1][2] It is closely related to the phoenix 1 and barberpole oscillators, and can be seen as the majority of a phoenix 1 being supported by one half of quad.
Commonness
- Main article: List of common oscillators
This oscillator is one of very few examples of periodic objects with a population of 20 or lower which have yet to occur naturally from soup.
Glider synthesis
On February 3, 2025, Martin Grant found a 17-glider synthesis that converts a phoenix 1 into almosymmetric.[3][4]
See also
References
- ↑ Robert Wainwright (September 1971). Lifeline, vol 3, page 3.
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ Martin Grant (February 3, 2025). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#9020341557) (February 3, 2025). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
- Almosymmetric at the Life Lexicon
- Almosymmetric at Adam P. Goucher's Catagolue
- 17P2.172 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 17 cells
- Periodic objects with minimum population 17
- Patterns with 17 cells
- Patterns found in 1971
- Patterns that can be constructed with 17 gliders
- Oscillators
- Oscillators with period 2
- Oscillators with mod 1
- Oscillators with heat 22
- Oscillators with volatility 0.79
- Oscillators with strict volatility 0.79
- Oscillators with n-e symmetry
- Small unnatural periodic objects