44P7.2: Difference between revisions

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{{oscillator|name=44P7.2|pname=44p7.2|c=44|p=7|bx=16|by=16|h=5.7|discoverer=David Buckingham|discoveryear=1977|animated=true|rle=true|life105=true|life106=true|plaintext=true}}
{{Oscillator
'''44P7.2''' is an unnamed [[period]] [[:Category:oscillators with period 7|7]] [[oscillator]] discovered by [[David Buckingham]] on June 19, [[:Category:patterns found in 1977|1977]].<ref>{{CiteHickersonOscillators}}</ref> In [[generation]] 6 it supplies two accessible [[Polyomino#Dominoes|domino]] [[spark]]s, allowing this oscillator to be combined with other oscillators to form non-trivial oscillators of higher periods.
|name             = 44P7.2
|pname           = 44p7.2
|c               = 44
|bx               = 16
|by               = 16
|p                = 7
|m                = 7
|h               = 5.7
|v                = 0.31
|symmetry        = /
|discoverer       = David Buckingham
|discoveryear     = 1977
|rulemin          = B3/S23
|rulemax          = B378/S235678
|isorulemin      = B3-ceqy/S2-n3-c
|isorulemax      = B34cjqt5aci6cen78/S1c234-ijnyz5678
|synthesis        = 122
|synthesisRLE    = true
|plaintext        = true
|rle             = true
|animated        = true
|apgcode          = xp7_g88bdggz01130147obbgzy54t1u246zy71
|pentadecathlonid = 44P7.3
|viewerconfig    = #C [[ HEIGHT 600 THUMBSIZE 3 ZOOM 30 GPS 4 LOOP 7 ]]
}}
'''44P7.2''' is an unnamed {{period|7}} [[oscillator]] discovered by [[David Buckingham]] on June 19, {{year|1977}}.<ref>{{CiteHickersonOscillators}}</ref> In [[generation]] 6 it supplies two accessible [[domino]] [[spark]]s, allowing this oscillator to be combined with other oscillators to form non-trivial oscillators of higher periods.


==Image gallery==
[[File:44P7.2 gen6.png|center|thumb|Generation 6 of 44P7.2 showing two domino sparks]]
{|
|-
|[[Image:44P7.2_gen6.png|left|framed|Generation 6 of 44P7.2 showing two domino sparks]]
|}


==See also==
On July 4, {{year|2015}}, [[Martin Grant]] found a {{gliders|127}} [[Glider synthesis|synthesis]] for this oscillator.<ref name="post20994" />
*[[Caterer on 44P7.2]]
*[[Unix on 44P7.2]]


==References==
{{EmbedViewer
<references/>
|pname        = 42p7.1
|viewerconfig = #C [[ THUMBSIZE 2 ZOOM 18 ]]
|position    = center
|caption      = 42P7.1, a 44P7.2 variant with a smaller [[population]].
|style        = width:300px;
|apgcode = xp7_xoo0o4c3qajozggca2611z470bd
}}
 
== References ==
<references>
<ref name="post20994">{{LinkForumThread
|format = ref
|p      = 20994
|title  = Re: Synthesising Oscillators
|author = Martin Grant
|date  = July 4, 2015
}}</ref>
</references>
 
== External links ==
* {{LinkCatagolue|xp7_g88bdggz01130147obbgzy54t1u246zy71}}
* {{LinkPentadecathlonObject|44P7.3}}
 
{{Sparker|p=7|type=domino|strength=moderate}}
[[Category:Unnamed periodic objects]]
__NOTOC__

Latest revision as of 16:45, 21 February 2026

44P7.2
x = 16, y = 16, rule = B3/S23 11bo$10bobo$10bobo$9b2obob2o$12b2obo$8bob2o$11bo$8b3o$5bobo$3bo3bob2o$ b3obobob2o$o4b2o$b4o$4bo$3bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ HEIGHT 600 THUMBSIZE 3 ZOOM 30 GPS 4 LOOP 7 ]]
View animated image
View static image
Pattern type Oscillator
Number of cells 44
Bounding box 16 × 16
Period 7 (mod: 7)
Heat 5.7
Volatility 0.31 | 0.31
Kinetic symmetry /
Discovered by David Buckingham
Year of discovery 1977

44P7.2 is an unnamed period-7 oscillator discovered by David Buckingham on June 19, 1977.[1] In generation 6 it supplies two accessible domino sparks, allowing this oscillator to be combined with other oscillators to form non-trivial oscillators of higher periods.

Generation 6 of 44P7.2 showing two domino sparks

On July 4, 2015, Martin Grant found a 127-glider synthesis for this oscillator.[2]

x = 14, y = 14, rule = B3/S23 9b2o$9bo2b2o$10bobo$9b2obo$12b2o$10b2o$8bo2bo$8b3o$6b2o$2obo3bob2o$ob 2obobob2o$5b2o$b4o$bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 18 ]]
42P7.1, a 44P7.2 variant with a smaller population.
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here

References

  1. ↑ Dean Hickerson's oscillator stamp collection.
  2. ↑ Martin Grant (July 4, 2015). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
Retrieved from "https://conwaylife.com/w/index.php?title=44P7.2&oldid=171452"