Difference between revisions of "Gosper glider gun"
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{{Gunp=30name=Gosper glider gunbx=36by=9pname=gosperglidergunc=36discoverer=Bill Gosperdiscoveryear=1970life105=truelife106=trueplaintext=truerle=trueanimated=truesynthesis=8synthesisRLE=truerulemin=B3/S23rulemax=B38/S238rulespecial=[[Conway's Game of LifeConway Life]]}}  {{Gunp=30name=Gosper glider gunbx=36by=9pname=gosperglidergunc=36discoverer=Bill Gosperdiscoveryear=1970life105=truelife106=trueplaintext=truerle=trueanimated=truesynthesis=8synthesisRLE=truerulemin=B3/S23rulemax=B38/S238rulespecial=[[Conway's Game of LifeConway Life]]}}  
−  The '''Gosper glider gun''' is the first known [[gun]], and indeed the first known finite pattern with  +  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 GosperBill Gosper]] in November [[:Category:Patterns found in 19701970]]. It consists of two [[queen bee shuttlequeen bee shuttles]] stabilized by two [[blockblocks]]. It is the smallest known gun, and, as it can be [[glider synthesisconstructed]] using only eight gliders, it has the smallest known glider synthesis of any gun. It can be destroyed completely by five gliders, as shown below. 
==Inline inverter==  ==Inline inverter== 
Revision as of 15:19, 17 August 2010
Gosper glider gun  
View animated image  
View static image  
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 is the smallest known gun, and, as it can be constructed using only eight gliders, it has the smallest known glider synthesis of any gun. It can be destroyed completely by five 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, with the output glider stream being in the same direction as the input glider stream.^{[1]}
Image gallery
See also
References
 ↑ "Inline inverter". The Life Lexicon. Stephen Silver. Retrieved on May 22, 2009.
External links
 Gosper glider gun at the Life Lexicon