30P4H2V0: Difference between revisions

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updated synthesis
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|synthesis        = 82
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|synthesisRLE    = true
|synthesisRLE    = true
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'''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.
'''30P4H2V0.4''' 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.
Improvements to the synthesis have since been found.<ref name="message841625231402598412" />


==References==
==References==
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|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>

Revision as of 11:48, 11 May 2021

30P4H2V0.4
30P4H2V0.4 image
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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 Unspecified
Discovered by Unknown
Year of discovery Unknown

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 2015[1]) is unusually complex. It 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.

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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