Difference between revisions of "Period-20 glider gun"

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{{Gun|p=20|name=Period-20 glider gun|pname=period20glidergun|c=672|bx=78|by=42|discoverer=Matthias Merzenich|discoveryear=2013|nofile=true}}
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{{Gun
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|name         = Period-20 glider gun
 +
|pname       = period20glidergun
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|c           = 672
 +
|bx           = 78
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|by           = 42
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|p            = 20
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|b            = 1
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|discoverer   = Matthias Merzenich
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|discoverer2  = Noam Elkies
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|discoveryear = 2013
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|rle          = true
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}}
 
'''Period-20 glider gun''' is a [[Gun#True-period_guns|true period]]-20 glider gun that was discovered by [[:Category:Patterns found by Matthias Merzenich|Matthias Merzenich]] in [[:Category:Patterns found in 2013|2013]] and improved by [[:Category:Patterns found by Karel Suhajda|Karel Suhajda]]<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=1098|title=p20 gun|author=Matthias Merzenich|date=May 13, 2013|accessdate=March 17, 2015}}</ref>, based on Elkies' [[true period 24 gun]]. This is the shortest-period true-period gun known so far.
 
'''Period-20 glider gun''' is a [[Gun#True-period_guns|true period]]-20 glider gun that was discovered by [[:Category:Patterns found by Matthias Merzenich|Matthias Merzenich]] in [[:Category:Patterns found in 2013|2013]] and improved by [[:Category:Patterns found by Karel Suhajda|Karel Suhajda]]<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=1098|title=p20 gun|author=Matthias Merzenich|date=May 13, 2013|accessdate=March 17, 2015}}</ref>, based on Elkies' [[true period 24 gun]]. This is the shortest-period true-period gun known so far.
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[[Filter]]ing the output of the gun with a [[blocker]] yields the smallest period-40 glider gun, beating the eponymous [[period-40 glider gun]] at its own game. The further addition of [[Rich's p16]] doubles the period again, resulting in the smallest period-80 glider gun.
  
 
==Image gallery==
 
==Image gallery==

Latest revision as of 00:29, 5 October 2018

Period-20 glider gun
Period-20 glider gun image
Pattern type Gun
Number of cells 672
Bounding box 78×42
Period 20
Barrels 1
Discovered by Matthias Merzenich
Noam Elkies
Year of discovery 2013

Period-20 glider gun is a true period-20 glider gun that was discovered by Matthias Merzenich in 2013 and improved by Karel Suhajda[1], based on Elkies' true period 24 gun. This is the shortest-period true-period gun known so far.

Filtering the output of the gun with a blocker yields the smallest period-40 glider gun, beating the eponymous period-40 glider gun at its own game. The further addition of Rich's p16 doubles the period again, resulting in the smallest period-80 glider gun.

Image gallery

Animation of period-20 gun

References

  1. Matthias Merzenich (May 13, 2013). "p20 gun". Retrieved on March 17, 2015.