Difference between revisions of "Glider-producing switch engine"

From LifeWiki
Jump to navigation Jump to search
m
m (format=linear growth)
(30 intermediate revisions by 11 users not shown)
Line 1: Line 1:
{{Puffer|name=Glider-producing switch engine|bx=67|by=60|pname=gliderproducingswitchengine|c=123|p=384|s=c/12|dir=Diagonal|discoverer=Charles Corderman|life105=true|life106=true|plaintext=true|rle=true|synthesis=5|synthesisRLE=true}}
+
{{Puffer
The '''glider-producing switch engine''' (or '''glider-making switch engine''') is a [[puffer]] that was found by [[:Category:Patterns found by Charles Corderman|Charles Corderman]]. It consists of a [[switch engine]] reacting with [[block]]s produce various [[still life]]s and a [[glider]] every 384 [[generation]]s.
+
|name         = Glider-producing switch engine
 +
|pname        = gliderproducingswitchengine
 +
|c            = 123
 +
|bx           = 67
 +
|by           = 60
 +
|fc          = 21.0
 +
|dir          = Diagonal
 +
|p           = 384
 +
|s           = c/12
 +
|discoverer   = Charles Corderman
 +
|discoveryear = 1971
 +
|synthesis    = 4
 +
|synthesisRLE = true
 +
|plaintext   = true
 +
|rle         = true
 +
|apgcode      = yl384_1_59_7aeb1999980c43b4945fb7fcdb023326
 +
|animated    = true
 +
|viewerconfig = #C [[ TRACK -1/12 -1/12 THUMBSIZE 2 HEIGHT 480 Z 4 ]]
 +
}}
 +
The '''glider-producing switch engine''' (or '''glider-making switch engine''') is a [[puffer]] that was found by [[:Category:Patterns found by Charles Corderman|Charles Corderman]] in the early 1970s. It consists of a [[switch engine]] reacting with [[block]]s to produce various [[still life]]s, several [[blinker]]s, and a [[glider]] every 384 [[generation]]s.
  
It is the second most common naturally-occurring pattern that exhibits [[infinite growth]], and is one of only two patterns that exhibits infinite growth that has been known to occur naturally (the other being the [[block-laying switch engine]]).
+
Because of its easy construction (see its predecessors below), it has appeared in some superlinear growth patterns including [[mosquito 3]].<ref>{{CiteLexicon|file=lex_m.htm#mosquito3|name=Mosquito 3|accessdate=June 1, 2009}}</ref>
 +
 
 +
==Commonness==
 +
The glider-producing switch engine is the second most [[common]] naturally-occurring pattern that exhibits [[infinite growth]], the most common being the [[block-laying switch engine]]. It is also the ninety-first most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref>
 +
 
 +
==Time bomb==
 +
The '''time bomb''' (shown below) is a 17-[[cell]] [[pattern]] that was found by [[Doug Petrie]] that evolves into a glider-producing switch engine.<ref>{{CiteLexicon|file=lex_t.htm#timebomb|name=Time bomb|accessdate=May 16, 2009}}</ref>
 +
 
 +
==Synthesis==
 +
Although clean synthesis of the glider-producing switch engine requires 5 gliders, [[Michael Simkin]] found a 3-glider collision in October {{year|2014}} which includes the puffer in its [[ash]].<ref name="post13988" /> This collision has the minimum number of gliders necessary to exhibit infinite growth, and is the only known 3-glider collision to do so.
  
 
==Image gallery==
 
==Image gallery==
Line 8: Line 36:
 
|-
 
|-
 
|[[Image:Gliderproducingswitchengine_debris.png|thumb|231px|left|The debris left behind by the glider-producing switch engine]]
 
|[[Image:Gliderproducingswitchengine_debris.png|thumb|231px|left|The debris left behind by the glider-producing switch engine]]
|[[Image:Gliderproducingswitchengine_pred.png|framed|left|A simple [[predecessor]] of the glider-producing switch engine<br />{{JavaRLE|gliderproducingswitchenginepredecessor|brief}}]]
+
|[[Image:Timebomb.png|framed|left|The time bomb is a predecessor of the glider-producing switch engine<br />{{JavaRLE|timebomb|brief}}]]
 +
|[[Image:Gliderproducingswitchengine_pred.png|framed|left|Another simple [[predecessor]] of the glider-producing switch engine<br />{{JavaRLE|gliderproducingswitchenginepredecessor}}]]
 
|}
 
|}
 +
 +
==References==
 +
<references>
 +
<ref name="post13988">{{LinkForumThread
 +
|format = ref
 +
|title  = Re: Making switch-engines
 +
|p      = 13988
 +
|author = Michael Simkin
 +
|date  = October 24, 2014
 +
}}</ref>
 +
</references>
  
 
==External links==
 
==External links==
 +
{{LinkLexicon|lex_s.htm#stabilizedswitchengine|name=Stabilized switch engine}}
 
*[http://www.pentadecathlon.com/objects/class4/typeB/SwitchEngine1/switchEngine1.php Single switch engine puffer trains] at the Life Objects Catalog
 
*[http://www.pentadecathlon.com/objects/class4/typeB/SwitchEngine1/switchEngine1.php Single switch engine puffer trains] at the Life Objects Catalog
 +
{{LinkCatagolue|yl384_1_59_7aeb1999980c43b4945fb7fcdb023326|format=linear growth}}

Revision as of 23:10, 13 June 2019

Glider-producing switch engine
bo65b$bo65b$bo65b$5bo61b$b3o2bo60b$o4bo61b$o3bo62b$b3o63b$15b2o50b$13b 2o2bo49b$obo10b2o3bo48b$obo10b2o52b$obo64b$obo17bo46b$b2o14bo49b3$22bo 2bo41b$26bo40b$22bo10b2o32b$26bo6b2o32b$22b4o41b$21bo45b$22b2o43b$23bo 43b3$41b2o24b$41b2o24b3$13b2o52b$13b2o52b5$36b2o29b$36b3o9b2o17b$37bo 10bobo16b$49bo17b$33bo33b$27bo5bo33b$26bobo11b3o24b$26bo2bo9bob2o24b$ 16b2o9b2o10b2o26b$15bo2bo48b$15b2ob2o47b$18bobo46b$20b2o45b$17bo3bo45b $17bo2bo44b2o$18b3o44b2o3$54bo12b$53bobo11b$40bo12b2o12b$39bobo25b$39b 2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACK -1/12 -1/12 THUMBSIZE 2 HEIGHT 480 Z 4 ]]
Pattern type Puffer
Number of cells 123
Bounding box 67×60
Frequency class 21.0
Direction Diagonal
Period 384
Speed c/12
Discovered by Charles Corderman
Year of discovery 1971

The glider-producing switch engine (or glider-making switch engine) is a puffer that was found by Charles Corderman in the early 1970s. It consists of a switch engine reacting with blocks to produce various still lifes, several blinkers, and a glider every 384 generations.

Because of its easy construction (see its predecessors below), it has appeared in some superlinear growth patterns including mosquito 3.[1]

Commonness

The glider-producing switch engine is the second most common naturally-occurring pattern that exhibits infinite growth, the most common being the block-laying switch engine. It is also the ninety-first most common object on Adam P. Goucher's Catagolue.[2]

Time bomb

The time bomb (shown below) is a 17-cell pattern that was found by Doug Petrie that evolves into a glider-producing switch engine.[3]

Synthesis

Although clean synthesis of the glider-producing switch engine requires 5 gliders, Michael Simkin found a 3-glider collision in October 2014 which includes the puffer in its ash.[4] This collision has the minimum number of gliders necessary to exhibit infinite growth, and is the only known 3-glider collision to do so.

Image gallery

The debris left behind by the glider-producing switch engine
The time bomb is a predecessor of the glider-producing switch engine
RLE: here
Another simple predecessor of the glider-producing switch engine
Download RLE: click here

References

  1. "Mosquito 3". The Life Lexicon. Stephen Silver. Retrieved on June 1, 2009.
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
  3. "Time bomb". The Life Lexicon. Stephen Silver. Retrieved on May 16, 2009.
  4. Michael Simkin (October 24, 2014). Re: Making switch-engines (discussion thread) at the ConwayLife.com forums

External links