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'''Smiley''' is a {{period|8}} [[oscillator]] that was found by [[Achim Flammenkamp]] on July 17, {{year|1994}}<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> and named by [[Alan Hensel]].
'''Smiley''' is a {{period|8}} [[oscillator]] that was found by [[Achim Flammenkamp]] on July 17, {{year|1994}}<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> and named by [[Alan Hensel]].


In November 1994 [[Mark Niemiec]] noticed that its sparks can interact in boring, but non-trivial ways with other oscillators, optionally creating oscillators of higher periods.<ref>{{cite web|url=https://conwaylife.com/forums/viewtopic.php?p=22689#p22689|title=More straw|author=Mark Niemiec|date=November 1, 1994|accessdate=October 8, 2015}}</ref>
In November 1994, [[Mark Niemiec]] noticed that its [[spark]]s can interact in [[boring]], but [[non-trivial]] ways with other oscillators, optionally creating [[LCM oscillator]]s of higher periods.<ref name="post22689" />


==Synthesis==
== [[List of common oscillators|Commonness]] ==
A 28-[[glider synthesis]] for it was discovered in October {{year|2007}} by [[Jason Summers]].<ref>{{CiteSummersPattern|name=jslife|accessdate=January 5, 2020}}</ref> In November {{year|2014}}, [[Martin Grant]] posted an {{gliders|11|brief}}-glider synthesis based on a [[symmetric]] [[soup]] found by [[Ivan Fomichev]] using [[apgsearch]].<ref name="post14619" /> In August {{year|2015}}, [[Matthias Merzenich]] posted an 8-glider synthesis based on the first asymmetric soup, found by [[Adam P. Goucher]].<ref>{{cite web|url=https://conwaylife.com/forums/viewtopic.php?p=21605#p21605|title=Re: Soup search results|author=Matthias Merzenich|date=August 1, 2015|accessdate=September 18, 2015}}</ref><ref name="post21578" />


==[[List of common oscillators|Commonness]]==
On [[Catagolue]], it is the fourth most common period 8 oscillator, being less common than [[Coe's p8]] but slightly more common than [[Achim's p8]].<ref>{{citeCatagolueStats|October 27, 2018}}</ref>
On [[Catagolue]], it is the fourth most common period 8 oscillator, being less common than [[Coe's p8]] but slightly more common than [[Achim's p8]].<ref>{{citeCatagolueStats|October 27, 2018}}</ref>


==Image gallery==
== [[Glider synthesis]] ==
 
A 28-glider synthesis for the oscillator was discovered in October {{year|2007}} by [[Jason Summers]].<ref>{{CiteSummersPattern|name=jslife|accessdate=January 5, 2020}}</ref><ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2008/01/oscillator_construction.html|title=Oscillator Construction|date=January 6, 2008|publisher=[[Game of Life News]]|author=Heinrich Koenig‏‎|accessdate=March 20, 2022}}</ref> In November {{year|2014}}, [[Martin Grant]] posted an {{gliders|11|brief}}-glider synthesis based on a [[symmetric]] [[soup]] found by [[Ivan Fomichev]] using [[apgsearch]].<ref name="post14619" /> In August {{year|2015}}, [[Matthias Merzenich]] posted an {{gliders|8}} synthesis<ref name="post21605" /> based on the first asymmetric soup, found by [[Adam P. Goucher]].<ref name="post21578" />
 
== Image gallery ==
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==References==
== See also ==
* [[Monogram]]
 
== References ==
<references>
<references>
<ref name="post22689">{{LinkForumThread
|format = ref
|p          = 22689
|title      = Re: Gustavo Ramos Rehermann's patterns
|author = Mark Niemiec
|date    = September 18, 2015
}}</ref>
<ref name="post14619">{{LinkForumThread
<ref name="post14619">{{LinkForumThread
|format = ref
|format = ref
Line 51: Line 63:
|author = Martin Grant
|author = Martin Grant
|date  = November 28, 2014
|date  = November 28, 2014
}}</ref>
<ref name="post21605">{{LinkForumThread
|format = ref
|title  = Re: Soup search results
|p      = 21605
|author=Matthias Merzenich
|date=August 1, 2015
}}</ref>
}}</ref>
<ref name="post21578">{{LinkForumThread
<ref name="post21578">{{LinkForumThread
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</references>
</references>


==External links==
== External links ==
{{LinkLexicon|lex_s.htm#smiley}}
{{LinkLexicon|lex_s.htm#smiley}}
{{LinkCatagolue|xp8_2erore2z07x7}}
{{LinkCatagolue|xp8_2erore2z07x7}}

Revision as of 15:42, 20 March 2022

Smiley
x = 7, y = 7, rule = B3/S23 3ob3o$bobobo2$bo3bo2$obobobo$2bobo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ LOOP 8 GPS 4 THUMBSIZE 2 ]]
View animated image
View static image
Pattern type Oscillator
Number of cells 17
Bounding box 7 × 8
Frequency class 42.4
Period 8 (mod: 4)
Heat 22.5
Volatility 1.00 | 1.00
Kinetic symmetry Unspecified
Discovered by Achim Flammenkamp
Year of discovery 1994

Smiley is a period-8 oscillator that was found by Achim Flammenkamp on July 17, 1994[1] and named by Alan Hensel.

In November 1994, Mark Niemiec noticed that its sparks can interact in boring, but non-trivial ways with other oscillators, optionally creating LCM oscillators of higher periods.[2]

Commonness

On Catagolue, it is the fourth most common period 8 oscillator, being less common than Coe's p8 but slightly more common than Achim's p8.[3]

Glider synthesis

A 28-glider synthesis for the oscillator was discovered in October 2007 by Jason Summers.[4][5] In November 2014, Martin Grant posted an 11-glider synthesis based on a symmetric soup found by Ivan Fomichev using apgsearch.[6] In August 2015, Matthias Merzenich posted an 8-glider synthesis[7] based on the first asymmetric soup, found by Adam P. Goucher.[8]

Generation 2 reveals the reason for smiley's name

See also

References

  1. ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. ↑ Mark Niemiec (September 18, 2015). Re: Gustavo Ramos Rehermann's patterns (discussion thread) at the ConwayLife.com forums
  3. ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on October 27, 2018.
  4. ↑ Jason Summers' jslife pattern collection. Retrieved on January 5, 2020.
  5. ↑ Heinrich Koenig‏‎ (January 6, 2008). "Oscillator Construction". Game of Life News. Retrieved on March 20, 2022.
  6. ↑ Martin Grant (November 28, 2014). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  7. ↑ Matthias Merzenich (August 1, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  8. ↑ Martin Grant (July 31, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums


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