Difference between revisions of "David Hilbert"

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'''122P23''' (or '''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].}}) 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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'''122P23''' (or '''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].}}) 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]].
  
 
==Notes==
 
==Notes==

Revision as of 21:59, 25 November 2019

122P23
122P23 image
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
Year of discovery 2019
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122P23 (or David Hilbert[1][note 1]) 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.

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

External links