Difference between revisions of "Gosper glider gun"

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(it is an article about GGG, not about SGG)
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{{Gun|p=30|name=Gosper glider gun|bx=36|by=9|pname=gosperglidergun|c=36|discoverer=Bill Gosper|discoveryear=1970|life105=true|life106=true|plaintext=true|rle=true|animated=true|synthesis=8|synthesisRLE=true|rulemin=B3/S23|rulemax=B38/S238|rulespecial=[[Conway's Game of Life|Conway Life]]}}
 
{{Gun|p=30|name=Gosper glider gun|bx=36|by=9|pname=gosperglidergun|c=36|discoverer=Bill Gosper|discoveryear=1970|life105=true|life106=true|plaintext=true|rle=true|animated=true|synthesis=8|synthesisRLE=true|rulemin=B3/S23|rulemax=B38/S238|rulespecial=[[Conway's Game of Life|Conway Life]]}}
The '''Gosper glider gun''' is the first known [[gun]], and indeed the first known finite pattern with unbounded growth, found by [[:Category:Patterns found by Bill Gosper|Bill Gosper]] in November [[:Category:Patterns found in 1970|1970]]. It consists of two [[queen bee shuttle|queen bee shuttles]] stabilized by two [[block|blocks]]. It had been the smallest known gun until [[Simkin glider gun]] was discovered in [[:Category:Patterns found in 2015|2015]]. It can be destroyed completely by five gliders, as shown below.
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The '''Gosper glider gun''' is the first known [[gun]], and indeed the first known finite pattern with unbounded growth, found by [[:Category:Patterns found by Bill Gosper|Bill Gosper]] in November [[:Category:Patterns found in 1970|1970]]. It consists of two [[queen bee shuttle|queen bee shuttles]] stabilized by two [[block|blocks]]. It had been the smallest known gun until [[Simkin glider gun]] was discovered in [[:Category:Patterns found in 2015|2015]].
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As the Gosper glider gun can be [[glider synthesis|constructed]] with only 8 gliders, it has the smallest known glider synthesis of any gun. It can be destroyed completely by 5 gliders, as shown below.
  
 
==Inline inverter==
 
==Inline inverter==

Revision as of 06:44, 20 March 2016

Gosper glider gun
24bo11b$22bobo11b$12b2o6b2o12b2o$11bo3bo4b2o12b2o$2o8bo5bo3b2o14b$2o8b o3bob2o4bobo11b$10bo5bo7bo11b$11bo3bo20b$12b2o! #C [[ THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]]
Pattern type Gun
Number of cells 36
Bounding box 36×9
Period 30
Barrels Unknown
Discovered by Bill Gosper
Year of discovery 1970

The Gosper glider gun is the first known gun, and indeed the first known finite pattern with unbounded growth, found by Bill Gosper in November 1970. It consists of two queen bee shuttles stabilized by two blocks. It had been the smallest known gun until Simkin glider gun was discovered in 2015.

As the Gosper glider gun can be constructed with only 8 gliders, it has the smallest known glider synthesis of any gun. It can be destroyed completely by 5 gliders, as shown below.

Inline inverter

An inline inverter is a reaction with the Gosper glider gun in which it eats an incoming glider and thus can be used to invert the presence or absence of gliders in a period 30 stream, as in a NOT gate, with the output glider stream being in the same direction as the input glider stream.[1]

Image gallery

Glider destruction of the Gosper glider gun
RLE: here
An inline inverter inverting a glider stream
RLE: here
Twogun, the smallest known period-60 gun, is composed of two Gosper glider guns.
RLE: here

See also

References

  1. "Inline inverter". The Life Lexicon. Stephen Silver. Retrieved on May 22, 2009.

External links