Very long snake: Difference between revisions
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|rulemin = B/S23 | |rulemin = B/S23 | ||
|rulemax = B35678/S012345678 | |rulemax = B35678/S012345678 | ||
|rulespecial = [[Conway's Game of Life|Conway Life]], | |rulespecial = [[Conway's Game of Life|Conway Life]], {{rl|HighLife}} | ||
|isorulemin = B/S2aen3n | |isorulemin = B/S2aen3n | ||
|isorulemax = B2ikn34-r5678/S012345678 | |isorulemax = B2ikn34-r5678/S012345678 | ||
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|apgcode = xs8_31248c | |apgcode = xs8_31248c | ||
|pentadecathlonid = 8.3 | |pentadecathlonid = 8.3 | ||
|viewerconfig = [[ | |viewerconfig = [[ ZOOM 36 ]] | ||
}} | }} | ||
'''Very long snake''' is an {{slcells|8|text=8-cell}} [[still life]] and is the [[long long]] [[snake#Extensibility|extension]] of the [[snake]] which can be used as a [[one-time reflector]]. It was found in {{year|1971}}.<ref>{{CiteLifeline|vol=3|pages=page 2}}</ref> | '''Very long snake''' is an {{slcells|8|text=8-cell}} [[still life]] and is the [[long long]] [[snake#Extensibility|extension]] of the [[snake]] which can be used as a [[one-time reflector]]. It was found in {{year|1971}}.<ref>{{CiteLifeline|vol=3|pages=page 2}}</ref> | ||
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This still life can be interpreted as two mutually stabilising [[hook]]s. An alternate arrangement, which could be seen as the [[cis]] version of the very long snake, results in the [[canoe]]. | This still life can be interpreted as two mutually stabilising [[hook]]s. An alternate arrangement, which could be seen as the [[cis]] version of the very long snake, results in the [[canoe]]. | ||
== | == Occurrence == | ||
{{ | {{related|List of common still lifes}} | ||
Very long snake is the sixtieth most common [[still life]] in [[Achim Flammenkamp's census]], being less common than [[cis-block on long bookend]] but more common than [[tub with nine]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> It is also the seventy-second most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref> | Very long snake is the sixtieth most common [[still life]] in [[Achim Flammenkamp's census]], being less common than [[cis-block on long bookend]] but more common than [[tub with nine]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> It is also the seventy-second most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref> | ||
== | == Construction == | ||
{{Small constructible periodic object}} | {{Small constructible periodic object}} | ||
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* {{LinkLexicon|filename=lex_l.htm#longlongsnake|name=Long long snake}} | * {{LinkLexicon|filename=lex_l.htm#longlongsnake|name=Long long snake}} | ||
* {{LinkCatagolue|xs8_31248c|patternname=Very long snake}} | * {{LinkCatagolue|xs8_31248c|patternname=Very long snake}} | ||
* {{LinkNiemiec|p1.htm#p1-8| | * {{LinkNiemiec|p1.htm#p1-8|The 9 eight-bit still-lifes|rle=0/8vs.rle}} | ||
* {{LinkPentadecathlonObject|id=8.3}} | * {{LinkPentadecathlonObject|id=8.3|archivedate=20221102082323}} | ||
{{Symmetry|180degree}} | {{Symmetry|180degree}} | ||
Revision as of 15:50, 22 March 2023
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 8 | ||||||||
| Bounding box | 6 × 4 | ||||||||
| Frequency class | 20.0 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | 1971 | ||||||||
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Very long snake is an 8-cell still life and is the long long extension of the snake which can be used as a one-time reflector. It was found in 1971.[1]
This still life can be interpreted as two mutually stabilising hooks. An alternate arrangement, which could be seen as the cis version of the very long snake, results in the canoe.
Occurrence
- See also: List of common still lifes
Very long snake is the sixtieth most common still life in Achim Flammenkamp's census, being less common than cis-block on long bookend but more common than tub with nine.[2] It is also the seventy-second most common object on Adam P. Goucher's Catagolue.[3]
Construction
All strict still lifes with a population of 23 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 35 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
References
- ↑ Robert Wainwright (September 1971). Lifeline, vol 3, page 2.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
External links
- Long long snake at the Life Lexicon
- Very long snake at Adam P. Goucher's Catagolue
- The 9 eight-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 0/8vs.rle)
- 8.3 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 20
- Natural periodic objects
- Periodic objects with minimum population 8
- Patterns with 8 cells
- Patterns found in 1971
- Patterns that can be constructed with 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 8 cells
- Patterns with 180-degree rotation symmetry
- Diagonal line stabilisations