Snake dance: Difference between revisions

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Line 10: Line 10:
|h                = 5.3
|h                = 5.3
|v                = 0.22
|v                = 0.22
|rotor            = Snake tub
|symmetry        = rc
|discoverer      = Robert Wainwright
|discoverer      = Robert Wainwright
|discoveryear    = 1972
|discoveryear    = 1972
Line 18: Line 18:
|isorulemin      = B3er/S2-cn3cenr
|isorulemin      = B3er/S2-cn3cenr
|isorulemax      = B2-ac34ajqtw5-enr6-e7/S01c2345-r678
|isorulemax      = B2-ac34ajqtw5-enr6-e7/S01c2345-r678
|life105          = true
|synthesis        = 12
|life106          = true
|synthesis2      = 6
|synthesisRLE    = true
|plaintext        = true
|plaintext        = true
|rle              = true
|rle              = true
|animated        = true
|animated        = true
|apgcode          = xp3_kc0f1ab8oz11d58f032
|apgcode          = xp3_kc0f1ab8oz11d58f032
|apgcode2        = xp3_g8o0eh5mggz122q92t0643zy011
|pentadecathlonid = 32P3.754
|pentadecathlonid = 32P3.754
|viewerconfig    = #C [[ GPS 2 ZOOM 20 LOOP 3 ]]
}}
}}
'''Snake dance''' is a [[period]] [[:Category:Oscillators with period 3|3]] [[oscillator]] that was found by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]] in May [[:Category:Patterns found in 1972|1972]]. It has the same [[rotor]] as [[snake pit 2]].
'''Snake dance''' is a {{period|3}} [[oscillator]] that was found by [[Robert Wainwright]] in May {{year|1972}}.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> It has the same [[tub]]-like [[rotor]] as the '''[[snake pit]] 2''' shown below.


==External links==
== Glider synthesis ==
{{LinkLexicon|lex_s.htm#snakedance}}
A {{gliders|16}} synthesis for snake dance was found by [[Jeremy Tan]] on March 29, {{year|2019}} based on a symmetric [[soup]] submitted to [[Catagolue]].<ref name="post74101" /> Long before that, a {{gliders|6}} synthesis for snake pit 2, which is four gliders symmetrically hitting a pre-traffic light, has been known and is listed on [[Mark Niemiec]]'s page.
{{LinkCatagolue|xp3_kc0f1ab8oz11d58f032}}
{{LinkPentadecathlonObject|32P3.754}}


{{Symmetry|90degree}}
== Commonness ==
It is the second most common period-3 oscillator in C4_1 (odd fourfold rotational symmetry), being about eight times as common as the third-place snake pit 2. Second through sixth place all have the same rotor.
 
== Gallery ==
{{EmbedViewer
|pname        = snakepit2
|position    = center
|viewerconfig = #C [[ THUMBSIZE 2 AUTOSTART GPS 2 ZOOM 20 LOOP 3  ]]
|caption      = '''Snake pit 2'''
|apgcode      = xp3_g8o0eh5mggz122q92t0643zy011
}}
 
== References ==
<references>
<ref name="post74101">{{LinkForumThread
|format = ref
|title  = Re: Synthesising Oscillators
|p      = 74101
|author = Jeremy Tan
|date  = March 29, 2019
}}</ref>
</references>
 
== External links ==
* {{LinkLexicon|lex_s.htm#snakedance}}
* {{LinkCatagolue|xp3_kc0f1ab8oz11d58f032}}
* {{LinkPentadecathlonObject|32P3.754}}
* {{LinkLexicon|lex_s.htm#snakepit|name=Snake pit}}
* {{LinkPentadecathlonObject|36P3.68}}
* {{LinkNiemiec|p3.htm#p3-lg|patternname=15 period 3 oscillators 26 bits and larger}}
 
{{seminatural}}
__NOTOC__

Latest revision as of 11:55, 7 August 2024

Snake dance
x = 9, y = 9, rule = B3/S23 3b2obo$3bob2o$2obo$bo2bob3o$o2bobo2bo$3obo2bo$5bob2o$2b2obo$2bob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2 ZOOM 20 LOOP 3 ]]
View animated image
View static image
Pattern type Oscillator
Oscillator type Billiard table
Number of cells 32
Bounding box 9 × 9
Period 3 (mod: 3)
Heat 5.3
Volatility 0.22 | 0.22
Kinetic symmetry rc
Discovered by Robert Wainwright
Year of discovery 1972

Snake dance is a period-3 oscillator that was found by Robert Wainwright in May 1972.[1] It has the same tub-like rotor as the snake pit 2 shown below.

Glider synthesis

A 16-glider synthesis for snake dance was found by Jeremy Tan on March 29, 2019 based on a symmetric soup submitted to Catagolue.[2] Long before that, a 6-glider synthesis for snake pit 2, which is four gliders symmetrically hitting a pre-traffic light, has been known and is listed on Mark Niemiec's page.

Commonness

It is the second most common period-3 oscillator in C4_1 (odd fourfold rotational symmetry), being about eight times as common as the third-place snake pit 2. Second through sixth place all have the same rotor.

x = 11, y = 11, rule = B3/S23 5b2o$4bo2bo$4bob2o$b2obo$obo2bob3o$o3bobo3bo$b3obo2bobo$6bob2o$3b2obo $3bo2bo$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 AUTOSTART GPS 2 ZOOM 20 LOOP 3 ]]
Snake pit 2
(click above to open LifeViewer)
RLE: here Plaintext: here
Catagolue: here

References

  1. ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. ↑ Jeremy Tan (March 29, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
Retrieved from "https://conwaylife.com/w/index.php?title=Snake_dance&oldid=152081"