Difference between revisions of "David Hilbert"

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(101 gliders (Goldtiger997))
(POTY winner)
 
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|isorulemin      = B3-k/S23-cy
 
|isorulemin      = B3-k/S23-cy
 
|isorulemax      = B34e5c7c8/S234ety5ek6ei8
 
|isorulemax      = B34e5c7c8/S234ety5ek6ei8
|synthesis        = 101
 
 
|plaintext        = true
 
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|rle              = true
 
|rle              = true
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|viewerconfig    = #C [[ GPS 11.5 THUMBSIZE 2 ZOOM 10 ]]
 
|viewerconfig    = #C [[ GPS 11.5 THUMBSIZE 2 ZOOM 10 ]]
 
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'''David Hilbert'''<ref name="post85778" />{{refn|group=note|Named after German mathematician [https://en.wikipedia.org/wiki/David_Hilbert David Hilbert] in reference to his [https://en.wikipedia.org/wiki/Hilbert%27s_problems 23 problems].}} (or '''122P23''') was the first {{period|23}} [[oscillator]] to be discovered. It was found by [[Luka Okanishi]] on November 24, {{year|2019}}<ref name="post85719" /> based on a partial result by [[Aidan F. Pierce]].<ref name="post85778" /> It consists of two copies of an [[engine]], itself consisting of a [[B-heptomino]] being [[hassle]]d by two unusual [[catalyst]]s and a [[block]], supported by a known period-agnostic [[beehive]] [[shuttle]] mechanism (seen in, for example, an extension of the [[carnival shuttle]]). There are several [[isomer]]s known (including <i>trans-</i> versions and different phase offsets), with the one pictured having minimum [[population]] and [[bounding box]].
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'''David Hilbert'''<ref name="post85778" />{{refn|group=note|Named after German mathematician [https://en.wikipedia.org/wiki/David_Hilbert David Hilbert] in reference to his [https://en.wikipedia.org/wiki/Hilbert%27s_problems 23 problems].}} (or '''122P23''') was the first {{period|23}} [[oscillator]] to be discovered. It was found by [[Luka Okanishi]] on November 24, {{year|2019}}<ref name="post85719" /> based on a partial result by [[Aidan F. Pierce]].<ref name="post85778" /> It consists of two copies of an [[engine]], itself consisting of a [[B-heptomino]] being [[hassle]]d by two unusual [[catalyst]]s and a [[block]], supported by a known period-agnostic [[beehive]] [[shuttle]] mechanism (seen in, for example, an extension of the [[carnival shuttle]]). There are several [[isomer]]s known (including <i>trans-</i> versions and different phase offsets), with the one pictured having minimum [[population]] and [[bounding box]]. A {{gliders|101}} [[synthesis]] for one of these variants<ref>{{CiteCatagolue|title=xp23_y2c9b8ozy031130gy0ggy2o8b9czxggw65532w11ggy339e0o8goz62470s4gy433xahh3x23zy2d5k46y233w59ddiwgzy311y964k5d11zyk11|page=object/xp23_y2c9b8ozy031130gy0ggy2o8b9czxggw65532w11ggy339e0o8goz62470s4gy433xahh3x23zy2d5k46y233w59ddiwgzy311y964k5d11zyk11/b3s23|accessdate=December 29, 2019}}</ref> was posted by [[Goldtiger997]] on December 29.<ref name="post86668" />
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David Hilbert was voted on the [[ConwayLife.com]] forums as [[Pattern of the Year]] 2019.<ref name="post91252" />
  
 
==Notes==
 
==Notes==
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|author = Luka Okanishi
 
|author = Luka Okanishi
 
|date  = November 25, 2019
 
|date  = November 25, 2019
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}}</ref>
 +
<ref name="post86668">{{LinkForumThread
 +
|format = ref
 +
|title  = Re: Synthesising Oscillators
 +
|p      = 86668
 +
|author = Goldtiger997
 +
|date  = December 29, 2019
 +
}}</ref>
 +
<ref name="post91252">{{LinkForumThread
 +
|format = ref
 +
|title  = Re: POTY 2019 Voting
 +
|p      = 91252
 +
|author = Dave Greene
 +
|date  = March 16, 2020
 
}}</ref>
 
}}</ref>
 
</references>
 
</references>
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== External links ==
 
== External links ==
 
{{LinkCatagolue|xp23_y1ggy3o8bdzc82u074wo84s8x31560u28czx11y0hi21y411zy5ddx696zgg0s4y1owsi1isx4s0ggz10230f9y3ogjn45303201zyc65}}
 
{{LinkCatagolue|xp23_y1ggy3o8bdzc82u074wo84s8x31560u28czx11y0hi21y411zy5ddx696zgg0s4y1owsi1isx4s0ggz10230f9y3ogjn45303201zyc65}}
 
[[Category:Unnamed periodic objects]]
 

Latest revision as of 13:35, 16 March 2020

David Hilbert
x = 33, y = 26, rule = B3/S23 7b2o15b2o$8bo15bo$6bo19bo$6b5o11b5o$10bo11bo$4b4o17b4o$4bo2bo17bo2bo$ 21bo$21bo$9bo4b2ob2o2bob2o$8b3o3b2obo6b2o$7bo2b2o6bo$7b3o12bo$22bobo$ 3b2o11b2o4bo2bo2b2o$3bo12b2o5b2o4bo$2obo12b2o11bob2o$ob2ob2o19b2ob2obo $5bo21bo$5bobo17bobo$6b2o17b2o$10bo11bo$6b5o11b5o$6bo19bo$8bo15bo$7b2o 15b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 11.5 THUMBSIZE 2 ZOOM 10 ]]
Pattern type Oscillator
Number of cells 122
Bounding box 33×26
Period 23
Mod 23
Heat 34.6
Volatility 0.71
Strict volatility 0.71
Discovered by Luka Okanishi
Aidan F. Pierce
Year of discovery 2019

David Hilbert[1][note 1] (or 122P23) was the first period-23 oscillator to be discovered. It was found by Luka Okanishi on November 24, 2019[2] based on a partial result by Aidan F. Pierce.[1] It consists of two copies of an engine, itself consisting of a B-heptomino being hassled by two unusual catalysts and a block, supported by a known period-agnostic beehive shuttle mechanism (seen in, for example, an extension of the carnival shuttle). There are several isomers known (including trans- versions and different phase offsets), with the one pictured having minimum population and bounding box. A 101-glider synthesis for one of these variants[3] was posted by Goldtiger997 on December 29.[4]

David Hilbert was voted on the ConwayLife.com forums as Pattern of the Year 2019.[5]

Notes

  1. Named after German mathematician David Hilbert in reference to his 23 problems.

References

  1. 1.0 1.1 Luka Okanishi (November 25, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  2. Luka Okanishi (November 24, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. Adam P. Goucher. "xp23_y2c9b8ozy031130gy0ggy2o8b9czxggw65532w11ggy339e0o8goz62470s4gy433xahh3x23zy2d5k46y233w59ddiwgzy311y964k5d11zyk11". Catagolue. Retrieved on December 29, 2019.
  4. Goldtiger997 (December 29, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  5. Dave Greene (March 16, 2020). Re: POTY 2019 Voting (discussion thread) at the ConwayLife.com forums

External links