Jason's p22: Difference between revisions
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{{gallery item|{{EmbedViewer | {{gallery item|{{EmbedViewer | ||
|pname = | |pname = p22lumpsofmuckhassler2015 | ||
|viewerconfig = #C [[ HEIGHT 460 WIDTH 600 THUMBSIZE 2 ZOOM 12 GPS 22 ]] | |viewerconfig = #C [[ HEIGHT 460 WIDTH 600 THUMBSIZE 2 ZOOM 12 GPS 22 ]] | ||
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|caption = p22 [[lumps of muck]] hassler, found by [[praosylen]] (September {{year|2015}})<ref name="post22809" />; the [[boat]]s can be replaced by [[block]]s ({{LinkCatagolue|xp22_y16ppe4ggxgo4ogxoge2z0o4cx6egf710277gpdcgz11yc122hgzyc33x166y333zyog88ggy24y1oge2zyjo4cw332h1y1669b7zyi11|style=brief}}) | |caption = p22 [[lumps of muck]] hassler, found by [[praosylen]] (September {{year|2015}})<ref name="post22809" />; the [[boat]]s can be replaced by [[block]]s. This has since been reduced to eliminate the Jason's p22; see [[Lumps of muck hasslers#p22]]. ({{LinkCatagolue|xp22_y16ppe4ggxgo4ogxoge2z0o4cx6egf710277gpdcgz11yc122hgzyc33x166y333zyog88ggy24y1oge2zyjo4cw332h1y1669b7zyi11|style=brief}}) | ||
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|apgcode = xp22_y2ca23zws21q4zx11zxgc22sy1352zw8o121yfg88cz311y63556wo44488g1hzya4acx324nh10d2zyhgcw2q8ggzyi303558896zygc453 | |apgcode = xp22_y2ca23zws21q4zx11zxgc22sy1352zw8o121yfg88cz311y63556wo44488g1hzya4acx324nh10d2zyhgcw2q8ggzyi303558896zygc453 | ||
Revision as of 14:18, 9 December 2023
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 36 | ||||||||
| Bounding box | 27 × 14 | ||||||||
| Period | 22 (mod: 22) | ||||||||
| Heat | 35.6 | ||||||||
| Volatility | 0.93 | 0.93 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Jason Summers | ||||||||
| Year of discovery | 2000 | ||||||||
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- This article is about the 36-cell period-22 oscillator. For the 22-cell period-36 oscillator, see 22P36.
Jason's p22 (or 36P22) is a period-22 oscillator discovered by Jason Summers on August 27, 2000.[1] In this oscillator, an unnamed reaction is stabilized by two copies of eater 1. In terms of its 36 cells, it is the smallest known non-trivial period-22 oscillator, followed by p22 honey farm hassler with 40 cells and champagne glass with 45 cells.[2]
Jason's p22 gives off sparks, which in addition to allowing for the construction of non-trivial higher-period oscillators as seen in a later section, can be used to hassle various patterns shown in gallery below. Later on the day of the oscillator's discovery, David Eppstein found a way to combine two of them to produce the first true period-22 glider gun.
On August 12, 2022, this oscillator appeared semi-naturally for the first time, in a symmetric soup found by the Open Science Grid.[3]
Glider synthesis
In February 2001, Jason Summers found a 12-glider synthesis of this oscillator,[4] which was improved to 11 gliders by 2718281828 in December 2017[5] and later to 10 gliders by Mark Niemiec in September 2019.[6]
LCM oscillators
The LCM oscillators below are the smallest known ones by population while satisfying the condition that at least one cell oscillates at the full period.
| p110 with pseudo-barberpole (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| p154 with 34P14 shuttle (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
Gallery
| p22 lumps of muck hassler, found by praosylen (September 2015)[7]; the boats can be replaced by blocks. This has since been reduced to eliminate the Jason's p22; see Lumps of muck hasslers#p22. (Catagolue: here) (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| p22 B-heptomino hassler, found by David Raucci (November 2021)[8] (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| p110 century shuttle, found by David Raucci (February 2022)[9]; similar to diuresis (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| p44 mold on Jason's p22, smallest known non-trivial p44 oscillator until 2016 discovery of mold on rattlesnake (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| Extensible p22 traffic light hassler, found by Matthias Merzenich (June 2021)[10] (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
See also
- 30P25, another rotationally symmetric oscillator consisting of an active reaction supported by two fishhooks
References
- ↑ Jason Summers' all-osc pattern collection.
- ↑ "Class 2 Objects Catalog". Retrieved on April 9, 2009.
- ↑ Ian07 (August 12, 2022). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Jason Summers' jslife pattern collection.
- ↑ 2718281828 (December 6, 2017). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Mark Niemiec (September 30, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ praosylen (September 20, 2015). Re: Thread For Your Accidental Discoveries (discussion thread) at the ConwayLife.com forums
- ↑ David Raucci (November 2, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ David Raucci (February 17, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Matthias Merzenich (June 16, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
External links
- Jason's p22 at Adam P. Goucher's Catagolue
- 36P22.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 36 cells
- Periodic objects with minimum population 36
- Patterns with 36 cells
- Patterns found by Jason Summers
- Patterns found in 2000
- Patterns that can be constructed with 10 gliders
- Oscillators
- Oscillators with period 22
- Oscillators with mod 22
- Oscillators with heat 35
- Oscillators with volatility 0.93
- Oscillators with strict volatility 0.93
- Patterns with 180-degree rotation symmetry
- Sparkers
- Sparkers with period 22
- Non-reflecting duoplet sparkers
- Strong sparkers
- Semi-natural periodic objects