Difference between revisions of "Rob's p16"

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(Undo revision 69252 by Ian07 (talk))
Tag: Undo
(That's only relevant for still lifes, p2, p3 or p6 oscillators, gliders and xWSSes. Everything else is always censused, so the statistics are accurate.)
Tag: Undo
 
(35 intermediate revisions by 13 users not shown)
Line 17: Line 17:
|isorulemin  = B3-ky/S23-c
|isorulemin  = B3-ky/S23-c
|isorulemax  = B34cq5ceky6n78/S234ceky5jy6cik78
|isorulemax  = B34cq5ceky6n78/S234ceky5jy6cik78
|synthesis    = 17
|synthesis    = 8
|plaintext    = true
|plaintext    = true
|rle          = true
|rle          = true
|apgcode      = xp16_0c2w3vz33032988
|apgcode      = xp16_0c2w3vz33032988
|animated    = true
|animated    = true
|viewerconfig = #C [[ GPS 4 LOOP 16 ]]
|viewerconfig = #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 24 GPS 4 LOOP 16 ]]
}}{{Distinguish|Rich's p16}}
}}
'''Rob's p16''' is a {{period|16}} [[oscillator]] that was found by [[Rob Liston]] on February 9, {{year|2020}} using [[Adam P. Goucher]]'s [[apgsearch]],<ref>{{CiteCatagolue|page=haul/b3s23/G1/477c29ce65dab871f2889810e344bece|title=Haul|accessdate=February 10, 2020}}</ref> and first noticed by a human the next day.<ref name="post89261" /> It is the smallest known period-16 oscillator in terms of both [[population]] and [[bounding box]], the first p16 to appear [[natural]]ly, the first known [[strictly volatile]] p16, and the first new [[rotor]] discovered by asymmetric soup search since the 1980s. It also gives off weak [[spark]]s.<ref name="post89263" />
{{distinguish|Rich's p16}}
'''Rob's p16''' is a {{period|16}} [[oscillator]] that was found by [[Rob Liston]] on February 9, {{year|2020}} using [[Adam P. Goucher]]'s [[apgsearch]],<ref>{{CiteCatagolue|page=haul/b3s23/G1/477c29ce65dab871f2889810e344bece|title=Haul|accessdate=February 10, 2020}}</ref> and first noticed by a human the next day.<ref name="post89261" /> It is the smallest known period-16 oscillator in terms of both [[population]] and [[bounding box]], the first p16 to appear [[natural]]ly, the first known [[strictly volatile]] p16, and the first new [[rotor]] discovered by asymmetric soup search since the 1980s.


A {{gliders|17}} [[synthesis]] of this oscillator was found by [[Tanner Jacobi]] the day of its discovery.<ref name="post89284" />
It also gives off weak [[spark]]s,<ref name="post89263" /> which in addition to allowing for the construction of [[non-trivial]] higher-period oscillators as seen in a [[#LCM oscillators|later section]], can be used to [[filter]] an [[LWSS]] stream resulting in a reduction to the [[pseudo-period]] p16 [[glider gun]].<ref name="post89318" /> On November 12, [[James Pascua]] constructed a p32 [[lumps of muck]] hassler using this oscillator.<ref name="post110402" /> Later James Pascua constructed a [[period-48 glider gun]] that is currently the smallest at that period, also using this oscillator.


==See also==
== Glider synthesis ==
*[[Fumarole on Rob's p16]]
A {{gliders|17}} [[Glider synthesis|synthesis]] of this oscillator was found by [[Tanner Jacobi]] the day of its discovery.<ref name="post89284" /> Liston found a second Rob's p16 soup on June 30,<ref name="post99810" /> leading to a {{gliders|15}} synthesis by [[Goldtiger997]] the next day.<ref name="post99857" /> Yet another soup found by Liston in February {{year|2021}} reduced the cost to {{gliders|13|text=13 gliders}} and then to {{gliders|11|text=11 gliders}}.<ref name="message810652124190343201" /><ref name="message810696623352840193" /> A fifth soup by [[Adam P. Goucher]] (incidentally the first soup not found by Liston) led to a {{gliders|10}} synthesis,<ref name="post126956" /> which [[Dave Greene]] made a [[slow-salvo]] [[seed]] out of.<ref name="post126954" /> A C1 soup occurrence in January {{year|2023}} led to a {{gliders|9}} synthesis,<ref name="post155679" /> which was reduced to an {{gliders|8}} synthesis on April 2, {{year|2023}}.<ref name="post159971" /><ref name="j4046277898" />


==References==
== Occurrence ==
{{related|List of common oscillators}}
As of June 2023, it has appeared 7 times in 455 trillion asymmetric soups.<ref>{{CiteCatagolue|page=object/xp16_0c2w3vz33032988/b3s23|title=Rob's p16|accessdate=June 20, 2023}}</ref><ref name="post155661" />
 
==LCM oscillators==
 
The [[LCM oscillator]]s below are listed due to being the smallest known ones by population, while also satisfying the condition that at least one cell oscillates at the full period.
 
{|style="margin:auto;width:300px;"
| {{EmbedViewer
|pname        = fumaroleonrobsp16
|position    = center
|viewerconfig = #C [[ GPS 20 THUMBSIZE 2 ZOOM 16 ]]
|caption      = p80 with [[fumarole]]
|apgcode      = xp80_35426ox22i8o0ooz65123y1vow86
}}
| {{EmbedViewer
|pname        = pentadecathlononrobsp16
|position    = center
|viewerconfig = #C [[ GPS 20 THUMBSIZE 2 ZOOM 16 ]]
|caption      = p240 with [[pentadecathlon]]
|apgcode      = xp240_4r4y11h94c0ccz4r4y2fcw43
}}
|}
 
== References ==
<references>
<references>
<ref name="j4046277898">{{CiteCatagolueJob|job=4046277898|date=April 2, 2023}}</ref>
<ref name="post89261">{{LinkForumThread
<ref name="post89261">{{LinkForumThread
|format = ref
|format = ref
Line 46: Line 73:
|author = Matthias Merzenich
|author = Matthias Merzenich
|date  = February 10, 2020
|date  = February 10, 2020
}}</ref>
<ref name="post110402">{{LinkForumThread
|format = ref
|title  = Re: Oscillator Discussion Thread
|p      = 110402
|author = James Pascua
|date  = November 12, 2020
}}</ref>
}}</ref>
<ref name="post89284">{{LinkForumThread
<ref name="post89284">{{LinkForumThread
Line 53: Line 87:
|author = Tanner Jacobi
|author = Tanner Jacobi
|date  = February 10, 2020
|date  = February 10, 2020
}}</ref>
<ref name="post89318">{{LinkForumThread
|format = ref
|title  = Re: Execution of Old Guns by Variable-Speed Firing Squad
|p      = 89318
|author = Tanner Jacobi
|date  = February 11, 2020
}}</ref>
<ref name="post99810">{{LinkForumThread
|format = ref
|title  = Re: Soup search results
|p      = 99810
|author = praosylen
|date  = June 30, 2020
}}</ref>
<ref name="post99857">{{LinkForumThread
|format = ref
|title  = Re: Soup search results
|p      = 99857
|author = Goldtiger997
|date  = July 1, 2020
}}</ref>
<ref name="message810652124190343201">{{CiteDiscord
|author  = goldenratio
|date    = February 14, 2021
|channel = cgol
|id      = 810652124190343201
}}</ref>
<ref name="message810696623352840193">{{CiteDiscord
|author  = Goldtiger997
|date    = February 14, 2021
|channel = cgol
|id      = 810696623352840193
}}</ref>
<ref name="post126956">{{LinkForumThread
|format = ref
|title  = Re: Soup search results
|p      = 126956
|author = Tanner Jacobi
|date  = March 25, 2021}}</ref>
<ref name="post126954">{{LinkForumThread
|format = ref
|title  = Re: Soup search results
|p      = 126954
|author = Dave Greene
|date  = March 25, 2021}}</ref>
<ref name="post155661">{{LinkForumThread
|format = ref
|title  = Re: Soup search results
|p      = 155661
|author = dani
|date  = January 7, 2023}}</ref>
<ref name="post155679">{{LinkForumThread
|format = ref
|title  = Re: Soup search results
|p      = 155679
|author = Dave Greene
|date  = January 7, 2023}}</ref>
<ref name="post159971">{{LinkForumThread
|format = ref
|p      = 159971
|title  = Re: Synthesising Oscillators
|author = Carson Cheng
|date  = April 2, 2023
}}</ref>
}}</ref>
</references>
</references>


==External links==
== External links ==
{{LinkCatagolue|xp16_0c2w3vz33032988}}
* {{LinkCatagolue|xp16_0c2w3vz33032988}}


{{Symmetry|osc=flip}}
{{Symmetry|osc=flip}}
{{Sparker|p=16|strength=weak}}
{{Sparker|p=16|strength=weak}}
{{natural}}
{{natural}}
__NOTOC__

Latest revision as of 02:45, 21 July 2023

Rob's p16
x = 8, y = 9, rule = B3/S23 5b2o$2bo2b2o$bo4bo$bo4bo$6bo$2obobo$2ob2o2$5b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 24 GPS 4 LOOP 16 ]]
View animated image
View static image
Pattern type Oscillator
Number of cells 21
Bounding box 10 × 12
Period 16
Mod 8
Heat 21
Volatility 1.00
Strict volatility 1.00
Discovered by Rob Liston
Year of discovery 2020
Not to be confused with Rich's p16.

Rob's p16 is a period-16 oscillator that was found by Rob Liston on February 9, 2020 using Adam P. Goucher's apgsearch,[1] and first noticed by a human the next day.[2] It is the smallest known period-16 oscillator in terms of both population and bounding box, the first p16 to appear naturally, the first known strictly volatile p16, and the first new rotor discovered by asymmetric soup search since the 1980s.

It also gives off weak sparks,[3] which in addition to allowing for the construction of non-trivial higher-period oscillators as seen in a later section, can be used to filter an LWSS stream resulting in a reduction to the pseudo-period p16 glider gun.[4] On November 12, James Pascua constructed a p32 lumps of muck hassler using this oscillator.[5] Later James Pascua constructed a period-48 glider gun that is currently the smallest at that period, also using this oscillator.

Glider synthesis

A 17-glider synthesis of this oscillator was found by Tanner Jacobi the day of its discovery.[6] Liston found a second Rob's p16 soup on June 30,[7] leading to a 15-glider synthesis by Goldtiger997 the next day.[8] Yet another soup found by Liston in February 2021 reduced the cost to 13 gliders and then to 11 gliders.[9][10] A fifth soup by Adam P. Goucher (incidentally the first soup not found by Liston) led to a 10-glider synthesis,[11] which Dave Greene made a slow-salvo seed out of.[12] A C1 soup occurrence in January 2023 led to a 9-glider synthesis,[13] which was reduced to an 8-glider synthesis on April 2, 2023.[14][15]

Occurrence

See also: List of common oscillators

As of June 2023, it has appeared 7 times in 455 trillion asymmetric soups.[16][17]

LCM oscillators

The LCM oscillators below are listed due to being the smallest known ones by population, while also satisfying the condition that at least one cell oscillates at the full period.

x = 17, y = 10, rule = B3/S23 2o$o2b2o4b3o$b2obo$5bo6b2ob2o$5bo5bobob2o$b2obo5bo$o2b2o5bo4bo$2o8bo4b o$10b2o2bo$10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 20 THUMBSIZE 2 ZOOM 16 ]]
p80 with fumarole
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here
x = 16, y = 10, rule = B3/S23 bo6b3o$bo$obo8b2ob2o$bo8bobob2o$bo7bo$bo7bo4bo$bo7bo4bo$obo6b2o2bo$bo7b2o$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 20 THUMBSIZE 2 ZOOM 16 ]]
p240 with pentadecathlon
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here

References

  1. ↑ Adam P. Goucher. "Haul". Catagolue. Retrieved on February 10, 2020.
  2. ↑ Tanner Jacobi (February 10, 2020). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. ↑ Matthias Merzenich (February 10, 2020). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  4. ↑ Tanner Jacobi (February 11, 2020). Re: Execution of Old Guns by Variable-Speed Firing Squad (discussion thread) at the ConwayLife.com forums
  5. ↑ James Pascua (November 12, 2020). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  6. ↑ Tanner Jacobi (February 10, 2020). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  7. ↑ praosylen (June 30, 2020). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  8. ↑ Goldtiger997 (July 1, 2020). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  9. ↑ goldenratio (February 14, 2021). Message in #cgol on the Conwaylife Lounge Discord server
  10. ↑ Goldtiger997 (February 14, 2021). Message in #cgol on the Conwaylife Lounge Discord server
  11. ↑ Tanner Jacobi (March 25, 2021). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  12. ↑ Dave Greene (March 25, 2021). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  13. ↑ Dave Greene (January 7, 2023). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  14. ↑ Carson Cheng (April 2, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  15. ↑ shinjuku (#4046277898) (April 2, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  16. ↑ Adam P. Goucher. "Rob's p16". Catagolue. Retrieved on June 20, 2023.
  17. ↑ dani (January 7, 2023). Re: Soup search results (discussion thread) at the ConwayLife.com forums

External links


Retrieved from "https://conwaylife.com/w/index.php?title=Rob%27s_p16&oldid=133609"