Cha cha: Difference between revisions
Carson Cheng (talk | contribs) m Added natural category |
I do not agree - it is better to keep the detailed explanation and the existing ambiguity. It should not be simply claimed to be "natural" until it appears in an asymmetric soup |
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As of February 2022, this is one of eighteen 16-cell oscillators which are yet to arise naturally from an asymmetric soup on [[Catagolue]].<ref>{{LinkForumThread|t=5549|title=Small Unnatural Objects Watchlist|format=ref}}</ref> | As of February 2022, this is one of eighteen 16-cell oscillators which are yet to arise naturally from an asymmetric soup on [[Catagolue]].<ref>{{LinkForumThread|t=5549|title=Small Unnatural Objects Watchlist|format=ref}}</ref> | ||
However, in a somewhat unique case, on July 11, 2022, [[Charity Engine]] found a [[static symmetry|symmetric]] soup, in the symmetry of C2_2, that produces this oscillator in an asymmetric manner, and the two halves of the soup do not interact throughout the evolution of the soup. As a result, by using the same seed for a C1 soup, an asymmetric soup producing cha cha can be made, making it ambiguous whether or not this oscillator qualifies as "[[natural]]".<ref name="post148373" /> | |||
== Glider synthesis == | == Glider synthesis == | ||
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{{Symmetry|180degree}} | {{Symmetry|180degree}} | ||
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Revision as of 14:58, 27 August 2022
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Oscillator type | Muttering moat | ||||||||
| Family | Clock | ||||||||
| Number of cells | 16 | ||||||||
| Bounding box | 8 × 6 | ||||||||
| Period | 2 (mod: 2) | ||||||||
| Heat | 16 | ||||||||
| Volatility | 0.66 | 0.66 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Cha cha[1] is a period 2 muttering moat[2] oscillator, the long extension of clock.
Commonness
- Main article: List of common oscillators
As of February 2022, this is one of eighteen 16-cell oscillators which are yet to arise naturally from an asymmetric soup on Catagolue.[3]
However, in a somewhat unique case, on July 11, 2022, Charity Engine found a symmetric soup, in the symmetry of C2_2, that produces this oscillator in an asymmetric manner, and the two halves of the soup do not interact throughout the evolution of the soup. As a result, by using the same seed for a C1 soup, an asymmetric soup producing cha cha can be made, making it ambiguous whether or not this oscillator qualifies as "natural".[4]
Glider synthesis
All strict still lifes with a population of 23 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 35 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
References
- ↑ Cha cha at Mark D. Niemiec's Life Page
- ↑ fsrm (February 23, 2016). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
- ↑ Small Unnatural Objects Watchlist (discussion thread) at the ConwayLife.com forums
- ↑ Carson Cheng (July 17, 2022). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
- The 98 sixteen-bit period 2 oscillators at Mark D. Niemiec's Life Page
- Cha cha at Adam P. Goucher's Catagolue
- 16P2.94 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Oscillators with 16 cells
- Periodic objects with minimum population 16
- Patterns with 16 cells
- Patterns that can be constructed with 12 gliders
- Oscillators
- Clock variants
- Muttering moats
- Oscillators with period 2
- Oscillators with mod 2
- Oscillators with heat 16
- Oscillators with volatility 0.66
- Oscillators with strict volatility 0.66
- Patterns with 180-degree rotation symmetry