Difference between revisions of "Gemini"

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(added refs for Geminis 2 and 3)
 
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{{Spaceship|name=Gemini|pname=gemini|p=33699586|s=2560c/16849793|dir=slope 5|c=846278|bx=4217807|by=4220191|discoverer=Andrew J. Wade|discoveryear=2010|nofile=true}}
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{{Spaceship
'''Gemini''' is the first [[oblique spaceship]] to be constructed, and was discovered by [[Andrew J. Wade]] in 2010.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2010/05/oblique_life_spaceship_created.html|title=Oblique Life spaceship created|date=May 19, 2010|work=Game of Life News|author=Adam P. Goucher|accessdate=May 21, 2010}}</ref> It displaces itself by 5120 cells vertically and 1024 cells horizontally every 33,699,586 generations. It comprises two identical halves, each of which contains three [[Chapman-Greene construction arm]]s. A ''tape'' of gliders continually relays between the two halves, instructing each to delete its parent and construct a daughter configuration.
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|name         = Gemini
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|pname       = gemini
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|c            = 846278
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|bx          = 4217807
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|by          = 4220191
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|dir         = Oblique
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|slope       = 5
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|p            = 33699586
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|m            = 33699586
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|s            = (2560,512)c/16849793
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|z            = (5120,1024)c/33699586
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|discoverer   = Andrew J. Wade
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|discoveryear = 2010
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|rulemin      = B3/S23
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|rulemax      = B3/S23
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|rulespecial  = [[Conway's Game of Life|Conway Life]]
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|synthesis    = 173449
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|synthesisRLE = true
 +
|mc          = true
 +
|zip          = true
 +
}}
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'''Gemini''' is the first [[oblique spaceship]] to be constructed, and was created by [[Andrew J. Wade]] in 2010.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2010/05/oblique_life_spaceship_created.html|title=Oblique Life spaceship created|date=May 19, 2010|work=Game of Life News|author=Adam P. Goucher|accessdate=May 21, 2010}}</ref><ref name="post2323" /> It displaces itself by 5,120 cells vertically and 1,024 cells horizontally every 33,699,586 generations, and is therefore an [[ibisship]]. It derives its name from the latin, ''gemini'', meaning twins, describing its 2 identical halves, each of which contains three [[Chapman-Greene construction arm]]s. A ''tape'' of gliders continually relays between the two halves, instructing each to delete its parent and construct a daughter configuration.
  
 
It is the largest spaceship in terms of its diameter and [[bounding box]], but has a much smaller population than the [[Caterpillar]].
 
It is the largest spaceship in terms of its diameter and [[bounding box]], but has a much smaller population than the [[Caterpillar]].
  
The pattern marks the thirteenth explicitly-constructed spaceship velocity, but facilitates an infinite range of related velocities. For example, [[Dave Greene]] has reduced its period by eight generations, whilst maintaining its displacement. Theoretically speaking, a Gemini-esque spaceship could be constructed with any velocity slower than (but not equal to) (1,1)c/580<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&p=2405#p2397 |title=Universal Constructor Based Spaceship|accessdate=May 21, 2010}}</ref>.
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The pattern marks the thirteenth explicitly-constructed spaceship velocity, but facilitates an infinite range of related velocities. For example, [[Dave Greene]] has reduced its period by eight generations, whilst maintaining its displacement. Theoretically speaking, a Gemini-esque spaceship could be constructed with any velocity slower than (but not equal to) (1,1)c/580.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&p=2405#p2397 |author=Adam P. Goucher|date=May 21, 2010|title=Universal Constructor Based Spaceship|accessdate=May 21, 2010}}</ref> In June 2010, Greene also constructed [[slope]]-2 and slope-3 versions of the spaceship.<ref name="post2578" /><ref name="post2590" />
  
== References ==
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Gemini was voted [[Pattern of the Year]] 2010 on the [[ConwayLife.com]] forums.<ref name="post4110" />
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==Videos==
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{|
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|-
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|{{#ev:youtube|X3wsFnwWK7E|300|left|Various zoom levels of gemini demonstrating its size}}
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|{{#ev:youtube|A8B5MbHPlH0|300|left|Some of Gemini's features (with CA music)}}
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|}
  
*[http://conwaylife.com/forums/viewtopic.php?f=2&t=399&start=0 Universal Constructor Based Spaceship]
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==Pattern files==
*[http://www.newscientist.com/article/mg20627653.800-first-replicating-creature-spawned-in-life-simulator.html?full=true New Scientist: First replicating creature spawned in life simulator]
 
  
==External links==
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* [http://www.conwaylife.com/patterns/gemini.mc Gemini]
*[https://docs.google.com/leaf?id=0B9e96aFfebqqZmY5NjBkYjctY2ViNi00NmJlLTgwZDAtNmU5OTQwYjc1OWQ0&hl=en downloadable zip of the Gemini RLE file]
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* [http://www.conwaylife.com/patterns/gemini2.mc Gemini 2]
(google is not allowing to download the file, but you can ''Share->Email as attachment'' to yourself)
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* [http://www.conwaylife.com/patterns/gemini3.mc Gemini 3]
  
*[https://docs.google.com/leaf?id=0B9e96aFfebqqZmZiOTY5ZGEtMzY3My00ZDI4LWI2ZDctNzQ0MGFjZjdjMTQw&hl=en Gemini RLE file with programs used to construct it]
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== See also ==
(On google docs so download quota may be exceeded by the time you attempt download.)
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* [[Geminoid]]
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* [[Replicator]]
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* [[Half-baked knightship]]
  
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== References ==
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<references>
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<ref name="post2323">{{LinkForumThread
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|format = ref
 +
|title  = Universal Constructor Based Spaceship
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|p      = 2323
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|author = Andrew J. Wade
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|date  = May 18, 2010
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}}</ref>
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<ref name="post2578">{{LinkForumThread
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|format = ref
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|title  = Re: Shrinking Gemini: Four Ideas
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|p      = 2578
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|author = Dave Greene
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|date  = June 13, 2010
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}}</ref>
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<ref name="post2590">{{LinkForumThread
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|format = ref
 +
|title  = Re: Shrinking Gemini: Four Ideas
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|p      = 2590
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|author = Dave Greene
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|date  = June 14, 2010
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}}</ref>
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<ref name="post4110">{{LinkForumThread
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|format = ref
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|title  = Re: Votes for Pattern of the Year 2010
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|p      = 4110
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|author = Adam P. Goucher
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|date  = January 17, 2011
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}}</ref>
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</references>
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==External links==
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{{LinkLexicon|lex_g.htm#gemini}}
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*[http://www.newscientist.com/article/mg20627653.800-first-replicating-creature-spawned-in-life-simulator.html?full=true New Scientist: First replicating creature spawned in life simulator]
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*[https://docs.google.com/leaf?id=0B9e96aFfebqqZmY5NjBkYjctY2ViNi00NmJlLTgwZDAtNmU5OTQwYjc1OWQ0&hl=en downloadable zip of the Gemini RLE file] (Google is not allowing to download the file, but you can ''Share->Email as attachment'' to yourself)
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*[https://docs.google.com/leaf?id=0B9e96aFfebqqZmZiOTY5ZGEtMzY3My00ZDI4LWI2ZDctNzQ0MGFjZjdjMTQw&hl=en Gemini RLE file with programs used to construct it] (on Google docs so download quota may be exceeded by the time you attempt download.)
 
*[http://drop.io/nimrodfiles/asset/gemini-with-programs-zip Gemini RLE file with programs used to construct it] (alternate download on drop.io)
 
*[http://drop.io/nimrodfiles/asset/gemini-with-programs-zip Gemini RLE file with programs used to construct it] (alternate download on drop.io)
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[[Category:Universal constructors]]
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[[Category:Adjustable spaceships]]
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__NOTOC__

Latest revision as of 18:13, 19 March 2020

Gemini
Gemini image
Pattern type Spaceship
Number of cells 846278
Bounding box 4217807×4220191
Direction Oblique
Slope 5
Period 33699586
Mod 33699586
Speed (2560,512)c/16849793
Speed (unsimplified) (5120,1024)c/33699586
Heat Unknown
Discovered by Andrew J. Wade
Year of discovery 2010

Gemini is the first oblique spaceship to be constructed, and was created by Andrew J. Wade in 2010.[1][2] It displaces itself by 5,120 cells vertically and 1,024 cells horizontally every 33,699,586 generations, and is therefore an ibisship. It derives its name from the latin, gemini, meaning twins, describing its 2 identical halves, each of which contains three Chapman-Greene construction arms. A tape of gliders continually relays between the two halves, instructing each to delete its parent and construct a daughter configuration.

It is the largest spaceship in terms of its diameter and bounding box, but has a much smaller population than the Caterpillar.

The pattern marks the thirteenth explicitly-constructed spaceship velocity, but facilitates an infinite range of related velocities. For example, Dave Greene has reduced its period by eight generations, whilst maintaining its displacement. Theoretically speaking, a Gemini-esque spaceship could be constructed with any velocity slower than (but not equal to) (1,1)c/580.[3] In June 2010, Greene also constructed slope-2 and slope-3 versions of the spaceship.[4][5]

Gemini was voted Pattern of the Year 2010 on the ConwayLife.com forums.[6]

Videos

Various zoom levels of gemini demonstrating its size
Some of Gemini's features (with CA music)

Pattern files

See also

References

  1. Adam P. Goucher (May 19, 2010). "Oblique Life spaceship created". Game of Life News. Retrieved on May 21, 2010.
  2. Andrew J. Wade (May 18, 2010). Universal Constructor Based Spaceship (discussion thread) at the ConwayLife.com forums
  3. Adam P. Goucher (May 21, 2010). "Universal Constructor Based Spaceship". Retrieved on May 21, 2010.
  4. Dave Greene (June 13, 2010). Re: Shrinking Gemini: Four Ideas (discussion thread) at the ConwayLife.com forums
  5. Dave Greene (June 14, 2010). Re: Shrinking Gemini: Four Ideas (discussion thread) at the ConwayLife.com forums
  6. Adam P. Goucher (January 17, 2011). Re: Votes for Pattern of the Year 2010 (discussion thread) at the ConwayLife.com forums

External links