Difference between revisions of "OCA:Snowflakes"
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'''Snowflakes''' is a nontotalistic [[cellular automaton#Wellknown Lifelike cellular automataLifelike cellular automaton]] by users BlinkerSpawn and danny that is [[omniperiodic]].  '''Snowflakes''' is a nontotalistic [[cellular automaton#Wellknown Lifelike cellular automataLifelike cellular automaton]] by users BlinkerSpawn and danny that is [[omniperiodic]].  
It is named by a very common 21 cell [[still life]] that has a 2 cell seed:  It is named by a very common 21 cell [[still life]] that has a 2 cell seed:  
−  {{  +  
−  $4bo$2b5o$2bo3bo$b2obob2o6bobo$2bo3bo$2b5o$4bo!}}  +  {{EmbedViewer 
+  rle = x = 21, y = 9, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e  
+  $4bo$2b5o$2bo3bo$b2obob2o6bobo$2bo3bo$2b5o$4bo!  
+  position = center  
+  }}  
==Patterns==  ==Patterns==  
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===Spaceships===  ===Spaceships===  
There are two very important small orthogonal spaceships:  There are two very important small orthogonal spaceships:  
−  {{  +  {{EmbedViewer 
−  x = 10, y = 3, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e  +  rle = x = 10, y = 3, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e 
−  6bo2bo$obo3b3o$3o4bo!}}  +  6bo2bo$obo3b3o$3o4bo! 
+  position = center}}  
The G is c/2, the R is 2c/4. There exist G [[gun]]s for all possible periods, the lowest being 11. The same is true for the R gun, but no guns have ever been found of periods 9 and 10, the former being the lowest period possible.  The G is c/2, the R is 2c/4. There exist G [[gun]]s for all possible periods, the lowest being 11. The same is true for the R gun, but no guns have ever been found of periods 9 and 10, the former being the lowest period possible.  
−  +  Besides c/2 orthogonal, the only known spaceship speeds are 2c/6 orthogonal, 2c/19 orthogonal and 2c/12 diagonal, with the smallest examples being:  
−  {{  +  {{EmbedViewer 
−  x = 41, y = 10, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e  +  rle = x = 41, y = 10, rule = B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e 
9b6o10b3o10bo$5bo2b5obo10bobo9b3o$3o6bobobobo9b3o12bo$8bob3obo9bo3bo$  9b6o10b3o10bo$5bo2b5obo10bobo9b3o$3o6bobobobo9b3o12bo$8bob3obo9bo3bo$  
4b3o2bo2b3o22bo2bo$bo6bobo10bo9bo$8b3o10bo4bo4bo$5bo15bo9bo$23bo5bo$  4b3o2bo2b3o22bo2bo$bo6bobo10bo9bo$8b3o10bo4bo4bo$5bo15bo9bo$23bo5bo$  
26bo!  26bo!  
+  position = center  
}}  }}  
The latter two spaceships have since appeared naturally in C1 soups, and have a synthesis from G's. For all known speeds there are puffers, but only the orthogonal speeds have rakes.  The latter two spaceships have since appeared naturally in C1 soups, and have a synthesis from G's. For all known speeds there are puffers, but only the orthogonal speeds have rakes. 
Revision as of 01:26, 15 February 2019
Snowflakes  


Rulestring  02ae3eijkq4iz5ar6i7e/2ci3ai4c8 B2ci3ai4c8/S02ae3eijkq4iz5ar6i7e 


Character  Chaotic 
Snowflakes is a nontotalistic Lifelike cellular automaton by users BlinkerSpawn and danny that is omniperiodic. It is named by a very common 21 cell still life that has a 2 cell seed:
(click above to open LifeViewer) 
Patterns
Spaceships
There are two very important small orthogonal spaceships:
(click above to open LifeViewer) 
The G is c/2, the R is 2c/4. There exist G guns for all possible periods, the lowest being 11. The same is true for the R gun, but no guns have ever been found of periods 9 and 10, the former being the lowest period possible.
Besides c/2 orthogonal, the only known spaceship speeds are 2c/6 orthogonal, 2c/19 orthogonal and 2c/12 diagonal, with the smallest examples being:
(click above to open LifeViewer) 
The latter two spaceships have since appeared naturally in C1 soups, and have a synthesis from G's. For all known speeds there are puffers, but only the orthogonal speeds have rakes.
A universal constructor is in the works by Goldtiger997 and several other users, which may lead to a very highperiod spaceship, much like Life's universal constructorbased spaceships.
External links
 Snowflakes (discussion thread) at the ConwayLife.com forums