P49 bouncer loop: Difference between revisions
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{{Oscillator | {{Oscillator | ||
|name = p49 bouncer loop | |name = p49 bouncer loop | ||
|pname = | |pname = p49bouncerloop | ||
|f1 | |f1 = Relay | ||
|c = | |c = 440 | ||
|bx = 65 | |bx = 65 | ||
|by = 65 | |by = 65 | ||
|p = 49 | |p = 49 | ||
|m = 49 | |m = 49 | ||
|h = | |h = 84.6 | ||
|v = 0. | |v = 0.58 | ||
|sv = 0. | |sv = 0.41 | ||
|discoverer = Noam Elkies | |discoverer = Noam Elkies | ||
|discoveryear = 1999 | |discoveryear = 1999 | ||
| Line 17: | Line 17: | ||
|isorulemin = B3/S23 | |isorulemin = B3/S23 | ||
|isorulemax = B34e5a6c7c/S234cz5ek6ae78 | |isorulemax = B34e5a6c7c/S234cz5ek6ae78 | ||
|rle = true | |rle = true | ||
|apgcode = xp49_yh3iajaqjk46zygg2v0er8q6he8zygp9gf8ck3sj2y2ca23y58owo8wgy0ggzyjd55d2ody0256wccwgg0iu0uheq229t5d9lq0v4zym321ya1226414622d55pab430e91zyp361y5634xok8zy62egox66ynccx31e8zyb253x4ocy5gcozgie0o4qajkkm88c4g4c88gyag8oz4v0blimkni88behf0f9011w66wck8y0m38mkkmz11y01w23w32y5o8a6y28p7o562u1ijzyt2ehcb2re0v81zyuc45pbapa9o | |||
|apgcode = | |viewerconfig = #C [[ GPS 7 THUMBZOOM 8 HEIGHT 550 ]] | ||
|viewerconfig = #C [[ GPS 7 | |||
}} | }} | ||
The '''p49 bouncer loop''' is a {{period|49}} [[oscillator]] discovered in its original form by [[Noam Elkies]] on August 1, {{year|1999}},<ref>{{cite web|url=http://entropymine.com/jason/life/status.html |title=Game of Life Status page |accessdate=April 9, 2009}}</ref> and was the first period 49 oscillator to be found.<ref>{{CiteSummersPattern|name=jslife|accessdate=April 9, 2009}}</ref> It consists of four [[p7 bouncer]]s [[reflect]]ing four gliders around a period 49 track. | The '''p49 bouncer loop''' is a {{period|49}} [[oscillator]] discovered in its original form by [[Noam Elkies]] on August 1, {{year|1999}},<ref>{{cite web|url=http://entropymine.com/jason/life/status.html |title=Game of Life Status page |accessdate=April 9, 2009}}</ref> and was the first period 49 oscillator to be found.<ref>{{CiteSummersPattern|name=jslife|accessdate=April 9, 2009}}</ref> It consists of four [[p7 bouncer]]s [[reflect]]ing four gliders around a period-49 track. On January 24, {{year|2003}}, [[Karel Suhajda]] found a slightly smaller [[p7 pipsquirter]], giving a {{cells|400|text=400-cell}} variant of the oscillator. Suhajda's variant was the smallest known period-49 oscillator until the discovery of [[Snark]]-based [[adjustable glider loop]]s in {{year|2013}}. | ||
{{gallery item|{{EmbedViewer | {{gallery item|{{EmbedViewer | ||
|viewerconfig = #C [[ THUMBZOOM 8 HEIGHT 550 ]] | |||
|viewerconfig = #C [[ | |rle = x = 65, y = 65, rule = B3/S23 | ||
21b2o$20bo2bo$17bo3bobo$15b6obo$14bo5bo$14bob2obo2bo$15bo3bob2o$17bob | |||
o$16b2o3b2o$15bo2b2obo$13bo2bo3bo2bo9bo$13b2obo3bob2o7b3o$14bobob2obo | |||
8bo$14bob3o2bo8b2o$15bo3bob2o$16b4o2bo5bo$20bo6bobo$16b4o2bo5b2o2b2o$ | |||
16bo2bob2o9b2o$21bo$19bobo31b2o$19b2o6bo23b3o5b2o$25b2o23bo4bo2bo2bo$ | |||
26b2o18b2obob4obo2bobo$10b2o5b2o28bobobo4b2obob2o$11bo5b2o28bobob2o2b | |||
o5bo$11bobo29b2ob2ob2obo2bob3obo$12b2o29bo4bo4b2o5b2obo$16b2o26b3o3b3o | |||
2b2obo3bobo$15bobo20b2o6b2ob2o2bo2bob2obo2bo$16bo20b2o14b2o7b2o$39bo2$ | |||
25bo$b2o7b2o14b2o20bo$o2bob2obo2bo2b2ob2o6b2o20bobo$obo3bob2o2b3o3b3o | |||
26b2o$bob2o5b2o4bo4bo29b2o$3bob3obo2bob2ob2ob2o29bobo$3bo5bo2b2obobo28b | |||
2o5bo$2b2obob2o4bobobo28b2o5b2o$3bobo2bob4obob2o18b2o$3bo2bo2bo4bo23b | |||
2o$4b2o5b3o23bo6b2o$10b2o31bobo$43bo$31b2o9b2obo2bo$31b2o2b2o5bo2b4o$ | |||
35bobo6bo$36bo5bo2b4o$42b2obo3bo$33b2o8bo2b3obo$34bo8bob2obobo$31b3o7b | |||
2obo3bob2o$31bo9bo2bo3bo2bo$43bob2o2bo$42b2o3b2o$45bobo$42b2obo3bo$42b | |||
o2bob2obo$44bo5bo$42bob6o$41bobo3bo$41bo2bo$42b2o! | |||
|position = center | |position = center | ||
|caption = | |caption = 400-cell variant found by Karel Suhajda on January 24, 2003 | ||
|style = width:300px; | |style = width:300px; | ||
}}}} | }}}} | ||
{{gallery item|{{EmbedViewer | {{gallery item|{{EmbedViewer | ||
|viewerconfig = #C [[ THUMBZOOM 10 HEIGHT 550 ]] | |||
|rle = x = 53, y = 49, rule = B3/S23 | |rle = x = 53, y = 49, rule = B3/S23 | ||
b2o4b2ob2o$2bo4bob2obo$2bob2obo4bo14bo$2o2bobob4ob2o10b3o$bobo2bo4bo3b | b2o4b2ob2o$2bo4bob2obo$2bob2obo4bo14bo$2o2bobob4ob2o10b3o$bobo2bo4bo3b | ||
| Line 49: | Line 60: | ||
2o3bo4bo3b2o$13bobo11b2o8bobo2bo3bob2o2bo$28bo8bo3bo4bo2bobo$25b3o10b | 2o3bo4bo3b2o$13bobo11b2o8bobo2bo3bob2o2bo$28bo8bo3bo4bo2bobo$25b3o10b | ||
2ob4obobo2b2o$25bo14bo4bob2obo$40bob2obo4bo$41b2ob2o4b2o! | 2ob4obobo2b2o$25bo14bo4bob2obo$40bob2obo4bo$41b2ob2o4b2o! | ||
|position = center | |position = center | ||
|caption = 380-cell {{times|53|49}} variant | |caption = 380-cell {{times|53|49}} variant using a smaller p7 pipsquirter found by [[Dongook Lee]] on November 20, {{year|2019}} | ||
|style = width:300px; | |style = width:300px; | ||
}}}} | }}}} | ||
Revision as of 00:03, 21 April 2024
| p49 bouncer loop | |||||||||
| View static image | |||||||||
| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Oscillator type | Relay | ||||||||
| Number of cells | 440 | ||||||||
| Bounding box | 65 × 65 | ||||||||
| Period | 49 (mod: 49) | ||||||||
| Heat | 84.6 | ||||||||
| Volatility | 0.58 | 0.41 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Noam Elkies | ||||||||
| Year of discovery | 1999 | ||||||||
| |||||||||
| |||||||||
The p49 bouncer loop is a period-49 oscillator discovered in its original form by Noam Elkies on August 1, 1999,[1] and was the first period 49 oscillator to be found.[2] It consists of four p7 bouncers reflecting four gliders around a period-49 track. On January 24, 2003, Karel Suhajda found a slightly smaller p7 pipsquirter, giving a 400-cell variant of the oscillator. Suhajda's variant was the smallest known period-49 oscillator until the discovery of Snark-based adjustable glider loops in 2013.
| 400-cell variant found by Karel Suhajda on January 24, 2003 (click above to open LifeViewer) |
| 380-cell 53 × 49 variant using a smaller p7 pipsquirter found by Dongook Lee on November 20, 2019 (click above to open LifeViewer) |
References
- ↑ "Game of Life Status page". Retrieved on April 9, 2009.
- ↑ Jason Summers' jslife pattern collection. Retrieved on April 9, 2009.
External links
- p49 bouncer loop at Adam P. Goucher's Catagolue (extended)
Categories:
- Patterns
- Oscillators with between 400 and 499 cells
- Periodic objects with minimum population between 400 and 499
- Patterns with between 400 and 499 cells
- Patterns found by Noam Elkies
- Patterns found in 1999
- Oscillators
- Relays
- Oscillators with period 49
- Oscillators with mod 49
- Oscillators with heat 84
- Oscillators with volatility 0.58
- Oscillators with strict volatility 0.41
- Patterns with 180-degree rotation symmetry