Difference between revisions of "Glider-producing switch engine"

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==Synthesis==
 
==Synthesis==
Although clean synthesis of glider-producing switch engine requires 5 gliders, Michael Simkin has found very messy 3 gliders synthesis in 2014<ref>{{Cite web|url=http://www.conwaylife.com/forums/viewtopic.php?p=13988#p13988|title=3 gliders infinite growth|author=Michael Simkin}}</ref>. This is the only known three glider synthesis of any infinite growth pattern, and it has the minimal number of gliders possible for infinite growth.
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Although clean synthesis of glider-producing switch engine requires 5 gliders, [[Michael Simkin]] has found very messy 3 gliders synthesis in 2014<ref>{{Cite web|url=http://www.conwaylife.com/forums/viewtopic.php?p=13988#p13988|title=3 gliders infinite growth|author=Michael Simkin}}</ref>. This is the only known three glider synthesis of any infinite growth pattern, and it has the minimal number of gliders possible for infinite growth.
  
 
==Image gallery==
 
==Image gallery==

Revision as of 17:44, 11 January 2015

Glider-producing switch engine
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Pattern type Puffer
Number of cells 123
Bounding box 67×60
Direction Diagonal
Period 384
Speed c/12
Discovered by Charles Corderman
Year of discovery Unknown

The glider-producing switch engine (or glider-making switch engine) is a puffer that was found by Charles Corderman in the early 1970s. It consists of a switch engine reacting with blocks to produce various still lifes, several blinkers, and a glider every 384 generations.

It is the second most common naturally-occurring pattern that exhibits infinite growth, and is one of only two patterns that exhibits infinite growth that has been known to occur naturally (the other being the block-laying switch engine).

Because of its easy construction (see its predecessors below), it has appeared in some superlinear growth patterns including mosquito 3.[1]

Time bomb

The time bomb (shown below) is a 17-cell pattern that was found by Doug Petrie that evolves into a glider-producing switch engine.[2]

Synthesis

Although clean synthesis of glider-producing switch engine requires 5 gliders, Michael Simkin has found very messy 3 gliders synthesis in 2014[3]. This is the only known three glider synthesis of any infinite growth pattern, and it has the minimal number of gliders possible for infinite growth.

Image gallery

The debris left behind by the glider-producing switch engine
The time bomb is a predecessor of the glider-producing switch engine
RLE: here
Another simple predecessor of the glider-producing switch engine
Download RLE: click here

References

  1. Stephen Silver. "Mosquito 3". The Life Lexicon. Retrieved on June 1, 2009.
  2. Stephen Silver. "Time bomb". The Life Lexicon. Retrieved on May 16, 2009.
  3. Michael Simkin. "3 gliders infinite growth".

External links