Difference between revisions of "Pond"
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{{Stilllife|name=Pond|pname=pond|c=8|bx=4|by=4|discoverer=JHC group|discoveryear=1970 | {{Stilllife | ||
'''Pond''' is an | |name = Pond | ||
|pname = pond | |||
|c = 8 | |||
|bx = 4 | |||
|by = 4 | |||
|fc = 5.0 | |||
|discoverer = JHC group | |||
|discoveryear = 1970 | |||
|rulemin = B/S2 | |||
|rulemax = B35678/S012345678 | |||
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]] | |||
|isorulemin = B/S2k | |||
|isorulemax = B1e2-ae34-w5678/S012345678 | |||
|synthesis = 2 | |||
|synthesisRLE = true | |||
|plaintext = true | |||
|rle = true | |||
|apgcode = xs8_6996 | |||
|pentadecathlonid = 8.7 | |||
}} | |||
'''Pond''' is an {{slcells|8}}-[[cell]] [[still life]] discovered by the [[JHC group]] in {{year|1970}}.<ref>{{CiteHickersonOscillators|accessdate=June 18, 2009}}</ref> It is the smallest [[lake]], followed by the 24-cell [[lake 2]]. | |||
It can be seen as a photonegative [[block]]. | |||
==[[List of common still lifes|Commonness]]== | |||
The pond is the sixth most common still life in [[Achim Flammenkamp's census]], being slightly less common than [[tub]] and more common than [[ship]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> It is also the nineth most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref> | |||
==Prepond== | |||
[[File:Prepond.png|thumb|left|The Prepond.]] | |||
The '''prepond''' is a common [[predecessor]] of the pond. The prepond turns into a pond in 32 Life-like rules, from B3/S23 to B378/S23678, but it dies out in [[HighLife]]. Consequently, the pond occurs more than twice as commonly in Game of Life than in HighLife. | |||
==See also== | ==See also== | ||
*[[Pond on pond]] | *[[Pond on pond]] | ||
*[[Bi-pond]] | *[[Bi-pond]] | ||
*[[Teardrop]] | *[[Teardrop]] | ||
*[[Jaydot]] | |||
==References== | ==References== | ||
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==External links== | ==External links== | ||
{{LinkWeisstein|Pond.html}} | {{LinkWeisstein|Pond.html}} | ||
{{LinkLexicon|lex_p.htm#pond}} | {{LinkLexicon|lex_p.htm#pond}} | ||
{{LinkCatagolue|xs8_6996}} | |||
{{LinkNiemiec|p1.htm#p1-8|patternname=The 9 eight-bit still-lifes}} | |||
{{Symmetry|full}} | |||
__NOTOC__ |
Revision as of 21:34, 28 December 2019
Pond | |||||||||
View static image | |||||||||
Pattern type | Strict still life | ||||||||
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Number of cells | 8 | ||||||||
Bounding box | 4 × 4 | ||||||||
Frequency class | 5.0 | ||||||||
Discovered by | JHC group | ||||||||
Year of discovery | 1970 | ||||||||
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Pond is an 8-cell still life discovered by the JHC group in 1970.[1] It is the smallest lake, followed by the 24-cell lake 2.
It can be seen as a photonegative block.
Commonness
The pond is the sixth most common still life in Achim Flammenkamp's census, being slightly less common than tub and more common than ship.[2] It is also the nineth most common object on Adam P. Goucher's Catagolue.[3]
Prepond
The prepond is a common predecessor of the pond. The prepond turns into a pond in 32 Life-like rules, from B3/S23 to B378/S23678, but it dies out in HighLife. Consequently, the pond occurs more than twice as commonly in Game of Life than in HighLife.
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
- Pond at the Life Lexicon
- Pond at Adam P. Goucher's Catagolue
- The 9 eight-bit still-lifes at Mark D. Niemiec's Life Page
Categories:
- Patterns
- Patterns with Catagolue frequency class 5
- Natural periodic objects
- Periodic objects with minimum population 8
- Patterns with 8 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 8 cells
- Patterns with complete square symmetry