Difference between revisions of "Gosper glider gun"

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==Trivia==
==Trivia==
* There are two other ways in which queen bees can interact to form gliders,<ref>http://conwaylife.com/forums/viewtopic.php?f=2&t=1179#p8989</ref> and a third queen bee can be used to reflect a glider and make a "pseudo-Gosper gun".<ref>http://conwaylife.com/forums/viewtopic.php?f=2&t=1179#p9150</ref>
* There are two other ways in which queen bees can interact to form gliders,<ref name="post8989" /> and a third queen bee can be used to reflect a glider and make a "pseudo-Gosper gun".<ref name="post9150" />


==Image gallery==
==Image gallery==
Line 45: Line 45:


==References==
==References==
<references />
<references>
<ref name="post8989">{{LinkForumThread
|format = ref
|title  = Re: It´s not a Gosper Glider Gun !
|p      = 8989
|author = Mark Niemiec
|date  = September 11, 2013
}}</ref>
<ref name="post9150">{{LinkForumThread
|format = ref
|title  = Re: It´s not a Gosper Glider Gun !
|p      = 9150
|author = Tropylium
|date  = September 26, 2013
}}</ref>
</references>


==External links==
==External links==

Revision as of 23:47, 14 February 2019

Gosper glider gun
24bo11b$22bobo11b$12b2o6b2o12b2o$11bo3bo4b2o12b2o$2o8bo5bo3b2o14b$2o8b o3bob2o4bobo11b$10bo5bo7bo11b$11bo3bo20b$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 GPS 15 ]]
Pattern type Gun
Number of cells 36
Bounding box 36 × 9
Period 30
Barrels 1
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. Its 36 cells remained the smallest size of any known gun until the discovery of the double-barreled Simkin glider gun in 2015 which overtook this record with only 29 cells.

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 2 gliders, as shown below.

Trivia

  • There are two other ways in which queen bees can interact to form gliders,[1] and a third queen bee can be used to reflect a glider and make a "pseudo-Gosper gun".[2]

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. Mark Niemiec (September 11, 2013). Re: It´s not a Gosper Glider Gun ! (discussion thread) at the ConwayLife.com forums
  2. Tropylium (September 26, 2013). Re: It´s not a Gosper Glider Gun ! (discussion thread) at the ConwayLife.com forums

External links

Template:LinkWeisstein