Period-92 glider gun: Difference between revisions

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Definition from Lexicon Release 29
 
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|pname        = period92glidergun
|pname        = period92glidergun
|c            = 97
|c            = 97
|bx          = 46
|bx          = 45
|by          = 25
|by          = 25
|p            = 92
|p            = 92
Line 9: Line 9:
|discoverer  = Martin Grant
|discoverer  = Martin Grant
|discoveryear = 2017
|discoveryear = 2017
|rulemin      = B3/S23
|rulemax      = B38/S238
|rulespecial  = [[Conway's Game of Life|Conway Life]]
|rulespecial  = [[Conway's Game of Life|Conway Life]]
|isorulemin  = B3/S23
|isorulemax  = B34e8/S234c6i8
|plaintext    = true
|rle          = true
|rle          = true
|viewerconfig = #C [[ THUMBSIZE 2 GPS 15 Z 10 ]]
|viewerconfig = #C [[ THUMBSIZE 2 GPS 15 Z 10 ]]
}}
}}
'''Period-92 glider gun''' is a [[glider]] [[gun]] with a [[true]] [[period]] of 92. The first one was found by [[Bill Gosper]] in 1971 using a period doubling reaction between two p46 guns. Many different p92 guns are known that use multiple [[twin bees shuttle]]s. A period 92 gun can also be made by adding a [[semi-cenark]] or [[semi-Snark]] to any period 46 glider gun.


'''Period-92 glider gun''' is a [[glider]] [[gun]] with a [[true]] [[period]] of 92. The first one was found by [[Bill Gosper]] in 1971 using a period doubling reaction between two p46 guns. Many different p92 guns are known that use multiple [[twin bees shuttle]]s. A period 92 gun can also be made by adding a [[semi-cenark]] to any period 46 glider gun.
On 17 November {{year|2017}}, [[Martin Grant]] found a new gun using one twin bees shuttle and one [[Tanner's p46]] oscillator, making it the smallest known p92 gun.<ref name="post52935" />


On 18 November [[:Category:Patterns found in 2017|2017]], [[Martin Grant]] found a new gun using one twin bees shuttle and one [[Tanner's p46]] oscillator, making it the smallest known p92 gun.
==References==
<references>
<ref name="post52935">{{LinkForumThread
|format = ref
|title  = Re: Execution of Old Guns by Variable-Speed Firing Squad
|p      = 52935
|author = Martin Grant
|date  = November 17, 2017
}}</ref>
</references>


==External links==
==External links==
{{LinkLexicon|lex_p.htm#p92gun}}
{{LinkLexicon|lex_p.htm#p92gun}}
* {{LinkGoLNews|2006/08/period_92_glider_gun.html|title=Period 92 Glider Gun|date=August 12, 2006|author=Heinrich Koenig}}

Latest revision as of 02:38, 17 June 2022

Period-92 glider gun
x = 45, y = 25, rule = B3/S23 4b2o14bo$5bo13bobo$5bobo11bobo18b2o$6b2o2b2o5b3ob2o17bobo$10b2o4bo24bo $17b3ob2o$19bob2o$33b2o2bo6bo$33bob2o6b2o$34bo$34b3o$o$3o7b2o22b3o$3bo 6bob2o20bo$2bobo7b2o19bob2o6b2o$2b2o6bob2o19b2o2bo6bo$10b2o$2b2o$2bo 38bo$3bo36bobo$2b2o36b2o$8b2o$9bo$6b3o$6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 GPS 15 Z 10 ]]
View static image
Pattern type Gun
Number of cells 97
Bounding box 45 × 25
Period 92
Barrels 1
Discovered by Martin Grant
Year of discovery 2017

Period-92 glider gun is a glider gun with a true period of 92. The first one was found by Bill Gosper in 1971 using a period doubling reaction between two p46 guns. Many different p92 guns are known that use multiple twin bees shuttles. A period 92 gun can also be made by adding a semi-cenark or semi-Snark to any period 46 glider gun.

On 17 November 2017, Martin Grant found a new gun using one twin bees shuttle and one Tanner's p46 oscillator, making it the smallest known p92 gun.[1]

References

  1. ↑ Martin Grant (November 17, 2017). Re: Execution of Old Guns by Variable-Speed Firing Squad (discussion thread) at the ConwayLife.com forums
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