30P4H2V0: Difference between revisions

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{{Spaceship
{{Spaceship
|name            = 30P4H2V0.4
|name            = 30P4H2V0
|pname            = 30p4h2v0.4
|pname            = 30p4h2v0
|c                = 30
|c                = 30
|bx              = 14
|bx              = 14
Line 11: Line 11:
|z                = 2c/4
|z                = 2c/4
|h                = 32.5
|h                = 32.5
|symmetry        = n
|rulemin          = B3/S23
|rulemin          = B3/S23
|rulemax          = B3/S2378
|rulemax          = B3/S2378
|rulespecial      = [[Conway's Game of Life|Conway Life]]
|isorulemin      = B3/S2-cn3-eky
|isorulemin      = B3/S2-cn3-eky
|isorulemax      = B34ceqt5-ijqr6-e7e/S234-ijnrw5-ijy6-ak78
|isorulemax      = B34ceqt5-ijqr6-e7e/S234-ijnrw5-ijy6-ak78
|plaintext        = true
|plaintext        = true
|rle              = true
|rle              = true
|synthesis        = 85
|synthesis        = 48
|synthesisRLE    = true
|synthesisRLE    = true
|animated        = true
|viewerconfig    = #C [[ TRACKLOOP 4 0 -1/2 THUMBSIZE 2 GPS 4 ]]
|viewerconfig    = #C [[ TRACKLOOP 4 0 -1/2 THUMBSIZE 2 GPS 4 ]]
|apgcode          = xq4_0gggbqiezkig4igzxd547
|apgcode          = xq4_0gggbqiezkig4igzxd547
|pentadecathlonid = 30P4H2V0.4
|pentadecathlonid = 30P4H2V0.4
}}
}}
'''30P4H2V0.4''' is a [[spaceship]].  It is one of the relatively few spaceships that can be constructed by gliders, though the best available still-life constellation [[seed]] for the final construction stage (found by [[Tanner Jacobi]] on 10 September {{year|2015}}<ref name="post22469" />) is unusually complex. It maintains a [[symmetry|singly skewed D2_+2 symmetry]] — an extremely unusual symmetry both in Life and in 2D square-grid CAs in general —  in three out of its four phases.
'''30P4H2V0''' is a [[spaceship]] that maintains a [[minor static symmetries|singly skewed D2_+2 symmetry]] — an extremely unusual symmetry both in Life and in 2D square-grid CAs in general —  in three out of its four phases.


==References==
== [[Glider synthesis]] ==
It is one of the relatively few spaceships that can be constructed by gliders, though the best available still-life constellation [[seed]] for the final construction stage (found by [[Tanner Jacobi]] on 10 September {{year|2015}}<ref name="post22469" />) is unusually complex.
 
Improvements to the synthesis have since been found.<ref name="message841625231402598412" />
 
== References ==
<references>
<references>
<ref name="post22469">{{LinkForumThread
<ref name="post22469">{{LinkForumThread
Line 35: Line 39:
|author = Tanner Jacobi
|author = Tanner Jacobi
|date  = September 10, 2015
|date  = September 10, 2015
}}</ref>
<ref name="message841625231402598412">{{CiteDiscord
|author  = iNoMed
|date    = May 11, 2021
|channel = cgol
|id      = 841625231402598412
}}</ref>
}}</ref>
</references>
</references>


==External links==
== External links ==
{{LinkCatagolue|xq4_0gggbqiezkig4igzxd547}}
{{LinkCatagolue|xq4_0gggbqiezkig4igzxd547}}
{{LinkPentadecathlonObject|30P4H2V0.4}}
{{LinkPentadecathlonObject|30P4H2V0.4}}


[[Category:Unnamed periodic objects]]
[[Category:Unnamed periodic objects]]

Latest revision as of 16:11, 31 August 2024

30P4H2V0
x = 14, y = 9, rule = B3/S23 b3o$o2bo6b3o$o4bo4bo2bo$3bobo2bo4bo$2o4bobobo$5bobo4b2o$3bo4bo$4bo5bo$ 9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 4 0 -1/2 THUMBSIZE 2 GPS 4 ]]
View static image
Pattern type Spaceship
Number of cells 30
Bounding box 14 × 9
Direction Orthogonal
Period 4 (mod: 4)
Speed c/2 | 2c/4
Heat 32.5
Kinetic symmetry n
Discovered by Unknown
Year of discovery Unknown

30P4H2V0 is a spaceship that maintains a singly skewed D2_+2 symmetry — an extremely unusual symmetry both in Life and in 2D square-grid CAs in general — in three out of its four phases.

Glider synthesis

It is one of the relatively few spaceships that can be constructed by gliders, though the best available still-life constellation seed for the final construction stage (found by Tanner Jacobi on 10 September 2015[1]) is unusually complex.

Improvements to the synthesis have since been found.[2]

References

  1. ↑ Tanner Jacobi (September 10, 2015). Re: Thread For Synthesisable Spaceship Guns (discussion thread) at the ConwayLife.com forums
  2. ↑ iNoMed (May 11, 2021). Message in #cgol on the Conwaylife Lounge Discord server
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