Difference between revisions of "Boat"
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{{Stilllife|c=5| | {{Stilllife | ||
The '''boat''' is the only [[still life]] with [[:Category: | |name = Boat | ||
|pname = boat | |||
|c = 5 | |||
|bx = 3 | |||
|by = 3 | |||
|fc = 2.8 | |||
|discoverer = JHC group | |||
|discoveryear = 1970 | |||
|rulemin = B/S23 | |||
|rulemax = B34678/S012345678 | |||
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]] | |||
|isorulemin = B/S2ce3n | |||
|isorulemax = B2-ae345-c678/S012345678 | |||
|synthesis = 2 | |||
|synthesisRLE = true | |||
|plaintext = true | |||
|rle = true | |||
|apgcode = xs5_253 | |||
|pentadecathlonid = 5.1 | |||
}} | |||
The '''boat''' is the only [[still life]] with [[:Category:Strict still lifes with 5 cells|5]] cells and was discovered by the [[JHC group]] in [[:Category:patterns found in 1970|1970]].<ref>{{CiteHickersonOscillators|accessdate=June 18, 2009}}</ref> It can be thought of as a [[tub]] with an extra cell in one of the corners, or a [[ship]] with one of the corner cells removed. Like the tub and the ship, it is infinitely extensible (see [[long boat]]). | |||
The boat can be hit by a [[glider]] to cleanly produce another glider, travelling perpendicular to the direction of the input glider. It is thus a [[one-time reflector]]. | |||
==[[List of common still lifes|Commonness]]== | |||
The boat is the fourth most common still life in [[Achim Flammenkamp's census]], being slightly less common than [[loaf]] and over four times as common as [[tub]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> It is also the sixth most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref> | |||
==See also== | ==See also== | ||
*[[Tub]] | |||
*[[Ship]] | |||
*[[Long boat]] | |||
*[[Boat maker]] | |||
*[[Boat-tie]] | *[[Boat-tie]] | ||
*[[ | *[[Boat-bit]] | ||
==References== | |||
<references /> | |||
==External links== | ==External links== | ||
{{LinkWeisstein|Boat.html}} | |||
{{LinkLexicon|lex_b.htm#boat}} | |||
{{LinkCatagolue|xs5_253}} | |||
{{LinkNiemiec|p1.htm#p1-5|patternname=The 1 five-bit still-life}} | |||
{{Vessel}} | |||
{{Symmetry|diagonal2}} | |||
__NOTOC__ | |||
[[Category:Diagonal line stabilisations]] |
Revision as of 21:09, 26 January 2019
Boat | |||||||||
View static image | |||||||||
Pattern type | Strict still life | ||||||||
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Number of cells | 5 | ||||||||
Bounding box | 3 × 3 | ||||||||
Frequency class | 2.8 | ||||||||
Discovered by | JHC group | ||||||||
Year of discovery | 1970 | ||||||||
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The boat is the only still life with 5 cells and was discovered by the JHC group in 1970.[1] It can be thought of as a tub with an extra cell in one of the corners, or a ship with one of the corner cells removed. Like the tub and the ship, it is infinitely extensible (see long boat).
The boat can be hit by a glider to cleanly produce another glider, travelling perpendicular to the direction of the input glider. It is thus a one-time reflector.
Commonness
The boat is the fourth most common still life in Achim Flammenkamp's census, being slightly less common than loaf and over four times as common as tub.[2] It is also the sixth most common object on Adam P. Goucher's Catagolue.[3]
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
- ↑ 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
- Boat at the Life Lexicon
- Boat at Adam P. Goucher's Catagolue
- The 1 five-bit still-life at Mark D. Niemiec's Life Page
Vessels | |
---|---|
No corners (barges) | (^-2) • (^-1) • ^0 • ^1 • ^2 • ^3 |
One corner (boats) | (^-2) • (^-1) • ^0 • ^1 • ^2 • ^3 |
Two corners (ships) | (^-1) • ^0 • ^1 • ^2 • ^3 |
Categories:
- Patterns
- Patterns with Catagolue frequency class 2
- Natural periodic objects
- Periodic objects with minimum population 5
- Patterns with 5 cells
- Patterns found by JHC group
- Patterns found in 1970
- Patterns that can be constructed with 2 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 5 cells
- Patterns with bilateral diagonal symmetry
- Diagonal line stabilisations