P55 pre-pulsar hassler: Difference between revisions

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synth reduction
 
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Line 10: Line 10:
|v                = 0.70
|v                = 0.70
|sv              = 0.70
|sv              = 0.70
|symmetry        = -c
|discoverer      = David Buckingham
|discoverer      = David Buckingham
|discoveryear    = 1986
|discoveryear    = 1986
Line 17: Line 18:
|isorulemin      = B3/S23
|isorulemin      = B3/S23
|isorulemax      = B3/S234c6ei7c8
|isorulemax      = B3/S234c6ei7c8
|synthesis        = 110
|synthesis        = 95
|plaintext        = true
|plaintext        = true
|rle              = true
|rle              = true
Line 30: Line 31:
A reduction to {{gliders|116|text=116 gliders}} was found by Carson Cheng in July 2023,<ref name="post163657" /> and a further reduction to {{gliders|110|text=110 gliders}} was found by Luka Okanishi.<ref name="post164348" /><ref name="j4774165230" />
A reduction to {{gliders|116|text=116 gliders}} was found by Carson Cheng in July 2023,<ref name="post163657" /> and a further reduction to {{gliders|110|text=110 gliders}} was found by Luka Okanishi.<ref name="post164348" /><ref name="j4774165230" />


A smaller version in both population and bounding box (shown below) was found by iNoMed on June 17, {{year|2022}}. However, it uses p5 supports instead of exclusively stable supports.
A smaller version in both population and bounding box (shown below) was found by iNoMed on June 17, {{year|2022}}. However, it uses p5 supports instead of exclusively stable supports, namely [[5blink]].


{{EmbedViewer
{{EmbedViewer
Line 37: Line 38:
|position    = center
|position    = center
|style        = width:300px;
|style        = width:300px;
|apgcode      = xp55_6ac663x64koy7ok46x366ca6z048qjoj52yf25jojq84z04a4y6gcgxgcgy64a4zw4aar0rbxgg03y130ggxbr0raa4zy1121w6221y51226w121
|caption = 110P55, which has a bounding box of {{times|37|23}}.
}}
}}


==Gallery==
== Gallery ==
<gallery widths="320px" style="text-align:center;">
<gallery widths="320px" style="text-align:center;">
File:prepulsarhassler55_gen4.png|[[Generation]] 4 of the originally found pattern reveals that the object being hassled is a pre-pulsar
Prepulsarhassler55 gen4.png|[[Generation]] 4 of the originally found pattern reveals that the object being hassled is a pre-pulsar
</gallery>
</gallery>


==See also==
== See also ==
* [[p26 pre-pulsar shuttle]]
* [[p26 pre-pulsar shuttle]]
* [[p28 pre-pulsar shuttle]]
* [[p28 pre-pulsar shuttle]]
Line 50: Line 53:
* [[p47 pre-pulsar shuttle]]
* [[p47 pre-pulsar shuttle]]


==References==
== References ==
<references>
<references>
<ref name="j4774165230">{{CiteCatagolueJob|job=4774165230|date=July 31, 2023}}</ref>
<ref name="j4774165230">{{CiteCatagolueJob|job=4774165230|date=July 31, 2023}}</ref>
Line 87: Line 90:
* {{LinkCatagolue|xp55_y2giligwoggy7ggowgiligz8k80u1460g9gx23y532xg9g0641u08k8zy0110gh221y1232x232y1122hg011zy0o8gp2qbyhbq2pg8ozy5320o8a6y76a8o023|patternname=p55 pre-pulsar hassler}}
* {{LinkCatagolue|xp55_y2giligwoggy7ggowgiligz8k80u1460g9gx23y532xg9g0641u08k8zy0110gh221y1232x232y1122hg011zy0o8gp2qbyhbq2pg8ozy5320o8a6y76a8o023|patternname=p55 pre-pulsar hassler}}


{{Symmetry|orthogonal2}}
{{DISPLAYTITLE:p55 pre-pulsar hassler}}
{{DISPLAYTITLE:p55 pre-pulsar hassler}}
__NOTOC__
__NOTOC__

Latest revision as of 05:14, 25 July 2026

p55 pre-pulsar hassler
x = 43, y = 25, rule = B3/S23 8bo25bo$7bobo23bobo$8bo25bo$13bo15bo$6b5o2b3o11b3o2b5o$5bo4bo5bo9bo5bo 4bo$4bo2bo7b2o9b2o7bo2bo$bo2bob2o27b2obo2bo$obobo5bo21bo5bobobo$bo2bo 4bobo19bobo4bo2bo$4b2o2bo2bo6bo5bo6bo2bo2b2o$9b2o6b3o3b3o6b2o3$7b2o25b 2o$7bo2bo21bo2bo$8b3o21b3o2$4b2obob2o21b2obob2o$4bob2obo23bob2obo$9bo 23bo$9b2o3b2o11b2o3b2o$15bo11bo$12b3o13b3o$12bo17bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 450 WIDTH 600 THUMBSIZE 2 ZOOM 12 GPS 11 LOOP 55 ]]
View animated image
View static image
Pattern type Oscillator
Number of cells 136
Bounding box 43 × 25
Period 55 (mod: 55)
Heat 25.82
Volatility 0.70 | 0.70
Kinetic symmetry -c
Discovered by David Buckingham
Year of discovery 1986

p55 pre-pulsar hassler is a period-55 oscillator discovered by David Buckingham on January 26, 1986[1], being the first period-55 oscillator to be found. It works by hassling a pre-pulsar with various still-lifes. The original pattern is hassled by two eater 1s, four eater 3s, and two 14-cell still lifes, each composed of an eater 1 and a bun. A reduced set of still-lifes were discovered by Matthias Merzenich in June, 2011. The new version is hassled by four eater 1s, two eater 3s, and two BTSs. On December 8, 2021, iNoMed found a slight reduction to this version.[2]

On December 9, 2021, iNoMed posted a 124-glider synthesis of the 136-cell hassler.[3] A reduction to 116 gliders was found by Carson Cheng in July 2023,[4] and a further reduction to 110 gliders was found by Luka Okanishi.[5][6]

A smaller version in both population and bounding box (shown below) was found by iNoMed on June 17, 2022. However, it uses p5 supports instead of exclusively stable supports, namely 5blink.

x = 37, y = 22, rule = B3/S23 10bo15bo$6bo3b3o11b3o3bo$5bobo5bo9bo5bobo$5bobo4b2o9b2o4bobo$3b3ob2o 19b2ob3o$2bo31bo$3b3ob2o19b2ob3o$5bob2o6bo5bo6b2obo$14b3o3b3o$2bo31bo$ bobo29bobo$2bo31bo$5b2o23b2o$6bo23bo$2b2o3bo21bo3b2o$2bo4bo21bo4bo$3bo 4bo19bo4bo$3b2ob2o21b2ob2o$2b2o7b2o11b2o7b2o$bo10bo11bo10bo$obo6b3o13b 3o6bobo$2o2b3o2bo17bo2b3o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 450 WIDTH 600 THUMBSIZE 2 ZOOM 12 GPS 28 ]]
110P55, which has a bounding box of 37 × 23.
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here
  • Generation 4 of the originally found pattern reveals that the object being hassled is a pre-pulsar
    Generation 4 of the originally found pattern reveals that the object being hassled is a pre-pulsar

See also

References

  1. ↑ Dean Hickerson's oscillator stamp collection.
  2. ↑ iNoMed (December 8, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. ↑ iNoMed (December 9, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  4. ↑ Carson Cheng (July 14, 2023). Re: Catagolue Oddities (discussion thread) at the ConwayLife.com forums
  5. ↑ Luka Okanishi (July 30, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  6. ↑ shinjuku (#4774165230) (July 31, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.


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