Difference between revisions of "Simkin glider gun"
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{{Gun | {{Gun | ||
|name = Simkin glider gun | |name = Simkin glider gun | ||
|pname = simkinglidergun | |pname = simkinglidergun | ||
|c = | |c = 29 | ||
|bx = 33 | |bx = 33 | ||
|by = | |by = 14 | ||
|p = 120 | |p = 120 | ||
|b = | |b = 2 | ||
|discoverer = Michael Simkin | |discoverer = Michael Simkin | ||
|discoveryear = 2015 | |discoveryear = 2015 | ||
|rulemin = B3/S23 | |rulemin = B3/S23 | ||
|rulemax = B38/S238 | |rulemax = B38/S238 | ||
|rulespecial = [[Conway's Game of Life|Conway Life]] | |rulespecial = [[Conway's Game of Life|Conway Life]], [[EightLife]], [[Pedestrian Life]] | ||
|synthesis = 9 | |||
|synthesisRLE = true | |||
|plaintext = true | |||
|rle = true | |rle = true | ||
|animated = true | |animated = true | ||
|viewerconfig = #C [[ THUMBSIZE 2 ZOOM 12 GPS 20 HEIGHT 480 ]] | |||
}} | }} | ||
'''Simkin glider gun''' is a glider gun, found by [[Michael Simkin]] on April 28, {{year|2015}}.<ref name="post19124" /> It consists of a [[Herschel]] running in two period-60 [[conduit]]s, producing infinite copies of the [[first natural glider]]. In terms of its 36 cells (if one of the two streams is suppressed by an [[eater 1]]) it is the smallest known gun, sharing the record with the [[Gosper glider gun]]. In the 29-cell [[double-barrelled]] form (shown in the infobox), as well as the [[pseudo-period]] [[boat-bit]] form, it is the absolute record holder. Its smallest known predecessor has only 21 cells.<ref name="post80317" /> | |||
'''Simkin glider gun''' is a glider gun, found by [[Michael Simkin]] on April 28, | |||
The day of its discovery, [[Chris Cain]] used it to create a [[sawtooth]] pattern with [[Sawtooth 181|181 cells]].<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=1590&p=19270#p19139|title=Re: Smaller sawtooth|author=Chris Cain|date=April 28, 2015|accessdate=November 16, 2018|work=ConwayLife.com forums}}</ref> | |||
The Simkin glider gun ranked second place in the [[Pattern of the Year]] 2015 competition on the [[ConwayLife.com]] forums, behind the [[syringe]].<ref name="post27344" /> | |||
==See also== | |||
*[[Simkin's p60]] - an oscillator derived from Simkin glider gun. | |||
*[[B-52 bomber]] - another double-barrelled glider gun involving a B-heptomino. | |||
*[[Period-256 glider gun]] - four-barrelled glider gun, also involving a Herschel. | |||
==References== | |||
<references> | |||
<ref name="post19124">{{LinkForumThread | |||
|format = ref | |||
|title = Re: The Hunting of the New Herschel Conduits | |||
|p = 19124 | |||
|author = Michael Simkin | |||
|date = April 28, 2015 | |||
}}</ref> | |||
<ref name="post80317">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Can confirm Fewest cell glide gun? | |||
|p = 80317 | |||
|author = Aidan F. Pierce | |||
|date = July 30, 2019 | |||
}}</ref> | |||
<ref name="post27344">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Pattern of the Year 2015 (Votes) | |||
|p = 27344 | |||
|author = Alexey Nigin | |||
|date = February 11, 2016 | |||
}}</ref> | |||
</references> | |||
==External links== | |||
{{LinkLexicon|lex_s.htm#simkinglidergun}} |
Revision as of 04:00, 19 March 2020
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Simkin glider gun | |||||||
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Pattern type | Gun | ||||||
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Number of cells | 29 | ||||||
Bounding box | 33 × 14 | ||||||
Period | 120 | ||||||
Barrels | 2 | ||||||
Discovered by | Michael Simkin | ||||||
Year of discovery | 2015 | ||||||
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Simkin glider gun is a glider gun, found by Michael Simkin on April 28, 2015.[1] It consists of a Herschel running in two period-60 conduits, producing infinite copies of the first natural glider. In terms of its 36 cells (if one of the two streams is suppressed by an eater 1) it is the smallest known gun, sharing the record with the Gosper glider gun. In the 29-cell double-barrelled form (shown in the infobox), as well as the pseudo-period boat-bit form, it is the absolute record holder. Its smallest known predecessor has only 21 cells.[2]
The day of its discovery, Chris Cain used it to create a sawtooth pattern with 181 cells.[3]
The Simkin glider gun ranked second place in the Pattern of the Year 2015 competition on the ConwayLife.com forums, behind the syringe.[4]
See also
- Simkin's p60 - an oscillator derived from Simkin glider gun.
- B-52 bomber - another double-barrelled glider gun involving a B-heptomino.
- Period-256 glider gun - four-barrelled glider gun, also involving a Herschel.
References
- ↑ Michael Simkin (April 28, 2015). Re: The Hunting of the New Herschel Conduits (discussion thread) at the ConwayLife.com forums
- ↑ Aidan F. Pierce (July 30, 2019). Re: Can confirm Fewest cell glide gun? (discussion thread) at the ConwayLife.com forums
- ↑ Chris Cain (April 28, 2015). "Re: Smaller sawtooth". ConwayLife.com forums. Retrieved on November 16, 2018.
- ↑ Alexey Nigin (February 11, 2016). Re: Pattern of the Year 2015 (Votes) (discussion thread) at the ConwayLife.com forums
External links
- Simkin glider gun at the Life Lexicon