Difference between revisions of "David Hilbert"
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{{Oscillator | {{Oscillator | ||
|name = | |name = David Hilbert | ||
|pname = | |pname = davidhilbert | ||
|c = 122 | |c = 122 | ||
|bx = 33 | |bx = 33 | ||
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|sv = 0.71 | |sv = 0.71 | ||
|discoverer = Luka Okanishi | |discoverer = Luka Okanishi | ||
|discoverer2 = Aidan F. Pierce | |||
|discoveryear = 2019 | |discoveryear = 2019 | ||
|rulemin = B3/S23 | |rulemin = B3/S23 | ||
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|animated = yes | |animated = yes | ||
|viewerconfig = #C [[ GPS 11.5 THUMBSIZE 2 ZOOM 10 ]] | |viewerconfig = #C [[ GPS 11.5 THUMBSIZE 2 ZOOM 10 ]] | ||
}} | |||
'''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, the amount of phase offsets being unknown), with the one pictured having minimum [[population]] and [[bounding box]]. A {{gliders|101}} [[synthesis]] for [https://catagolue.hatsya.com/object/xp23_y2c9b8ozy031130gy0ggy2o8b9czxggw65532w11ggy339e0o8goz62470s4gy433xahh3x23zy2d5k46y233w59ddiwgzy311y964k5d11zyk11/b3s23 one of these variants] was posted by [[Goldtiger997]] on December 29.<ref name="post86668" /> | |||
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 | ||
}}</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}} | ||
Revision as of 18:15, 11 December 2020
David Hilbert | |||||||||
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Pattern type | Oscillator | ||||||||
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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 | ||||||||
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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, the amount of phase offsets being unknown), with the one pictured having minimum population and bounding box. A 101-glider synthesis for one of these variants was posted by Goldtiger997 on December 29.[3]
David Hilbert was voted on the ConwayLife.com forums as Pattern of the Year 2019.[4]
Notes
- ↑ Named after German mathematician David Hilbert in reference to his 23 problems.
References
- ↑ 1.0 1.1 Luka Okanishi (November 25, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Luka Okanishi (November 24, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Goldtiger997 (December 29, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (March 16, 2020). Re: POTY 2019 Voting (discussion thread) at the ConwayLife.com forums
External links
- Patterns
- Oscillators with between 120 and 129 cells
- Periodic objects with minimum population between 120 and 129
- Patterns with between 120 and 129 cells
- Patterns found by Luka Okanishi
- Patterns found by Aidan F. Pierce
- Patterns found in 2019
- Oscillators
- Oscillators with period 23
- Prime-period oscillators
- Oscillators with mod 23
- Oscillators with heat 34
- Oscillators with volatility 0.71
- Oscillators with strict volatility 0.71