Difference between revisions of "Gemini"
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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> 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. | '''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]]. | ||
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|title = Universal Constructor Based Spaceship | |||
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|author = Andrew J. Wade | |||
|date = May 18, 2010 | |||
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Revision as of 19:11, 15 March 2020
| Gemini | |||||||||
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| Pattern type | Spaceship | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 846278 | ||||||||
| Bounding box | 4217807 × 4220191 | ||||||||
| Direction | Oblique | ||||||||
| Slope | 5 | ||||||||
| Period | 33699586 | ||||||||
| Mod | 33699586 | ||||||||
| Speed | (2560,512)c/16849793 | (5120,1024)c/33699586 | ||||||||
| Heat | Unknown | ||||||||
| Discovered by | Andrew J. Wade | ||||||||
| Year of discovery | 2010 | ||||||||
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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]
Gemini was voted Pattern of the Year 2010 on the ConwayLife.com forums.[4]
Videos
Pattern files
See also
References
- ↑ Adam P. Goucher (May 19, 2010). "Oblique Life spaceship created". Game of Life News. Retrieved on May 21, 2010.
- ↑ Andrew J. Wade (May 18, 2010). Universal Constructor Based Spaceship (discussion thread) at the ConwayLife.com forums
- ↑ Adam P. Goucher (May 21, 2010). "Universal Constructor Based Spaceship". Retrieved on May 21, 2010.
- ↑ Adam P. Goucher (January 17, 2011). Re: Votes for Pattern of the Year 2010 (discussion thread) at the ConwayLife.com forums
External links
- Gemini at the Life Lexicon
- New Scientist: First replicating creature spawned in life simulator
- downloadable zip of the Gemini RLE file (Google is not allowing to download the file, but you can Share->Email as attachment to yourself)
- Gemini RLE file with programs used to construct it (on Google docs so download quota may be exceeded by the time you attempt download.)
- Gemini RLE file with programs used to construct it (alternate download on drop.io)
Categories:
- Patterns
- Spaceships with between 100,000 and 999,999 cells
- Periodic objects with minimum population between 100,000 and 999,999
- Patterns with between 100,000 and 999,999 cells
- Patterns found by Andrew J. Wade
- Patterns found in 2010
- Patterns that can be constructed with 1,000 or more gliders
- Outer-totalistically endemic patterns
- Spaceships
- Spaceships with period 33699586
- Oblique spaceships
- Spaceships with slope 5
- Spaceships with speed (2560,512)c/16849793
- Spaceships with unsimplified speed (5120,1024)c/33699586
- Spaceships with mod 33699586
- Universal constructors
- Adjustable spaceships