Glider-producing switch engine: Difference between revisions
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Although a clean synthesis of the glider-producing switch engine requires 4 gliders, [[Michael Simkin]] found a 3-glider collision in October {{year|2014}} which includes the puffer in its [[ash]].<ref name="post13988" /> This collision has the minimum number of gliders necessary to exhibit infinite growth, and is the only known 3-glider collision to do so. | Although a clean synthesis of the glider-producing switch engine requires 4 gliders, [[Michael Simkin]] found a 3-glider collision in October {{year|2014}} which includes the puffer in its [[ash]].<ref name="post13988" /> This collision has the minimum number of gliders necessary to exhibit infinite growth, and is the only known 3-glider collision to do so. | ||
== | ==Gallery== | ||
{| | {| | ||
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|[[Image:Gliderproducingswitchengine_debris.png|thumb|346px|left|The debris left behind by the glider-producing switch engine]] | |[[Image:Gliderproducingswitchengine_debris.png|thumb|346px|left|The debris left behind by the glider-producing switch engine]] | ||
| | ||{{EmbedViewer | ||
{{EmbedViewer | |||
|pname = timebomb | |pname = timebomb | ||
|position = | |position = center | ||
|viewerconfig = #C [[ THUMBSIZE 2 ]] | |viewerconfig = #C [[ THUMBSIZE 2 ]] | ||
|caption = Time bomb<br /> | |caption = Time bomb<br /> | ||
}} | }} | ||
|{{EmbedViewer | |||
{{EmbedViewer | |||
|pname = gliderproducingswitchenginepredecessor2 | |pname = gliderproducingswitchenginepredecessor2 | ||
|position = center | |position = center | ||
|viewerconfig = #C [[ THUMBSIZE 2 ]] | |viewerconfig = #C [[ THUMBSIZE 2 ]] | ||
|caption = Another simple predecessor of the glider-producing switch engine<br /> | |caption = Another simple predecessor of the glider-producing switch engine<br /> | ||
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}} | }} | ||
Revision as of 22:43, 5 November 2021
| Glider-producing switch engine | |||||||||
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| Pattern type | Puffer | ||||||||
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| Number of cells | 123 | ||||||||
| Bounding box | 67 × 60 | ||||||||
| Frequency class | 21.0 | ||||||||
| Direction | Diagonal | ||||||||
| Period | 384 | ||||||||
| Speed | c/12 | ||||||||
| Discovered by | Charles Corderman | ||||||||
| Year of discovery | 1971 | ||||||||
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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.
Because of its easy construction (see its predecessors below), it has appeared in some superlinear growth patterns including mosquito 3.
Commonness
The glider-producing switch engine is the second most common naturally-occurring pattern that exhibits infinite growth, the most common being the block-laying switch engine. It is also the ninety-first most common object on Adam P. Goucher's Catagolue.[1]
Time bomb
The time bomb is a 17-cell pattern found by Douglas G. Petrie that evolves into a glider-producing switch engine.[2][3]
Synthesis
Although a clean synthesis of the glider-producing switch engine requires 4 gliders, Michael Simkin found a 3-glider collision in October 2014 which includes the puffer in its ash.[4] This collision has the minimum number of gliders necessary to exhibit infinite growth, and is the only known 3-glider collision to do so.
Gallery
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References
External links
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- Patterns
- Patterns with Catagolue frequency class 21
- Natural periodic objects
- Patterns with between 120 and 129 cells
- Patterns found by Charles Corderman
- Patterns found in 1971
- Patterns that can be constructed with 4 gliders
- Outer-totalistically endemic patterns
- Isotropically endemic patterns
- Linear growth
- Infinite growth
- Puffers
- Diagonal puffers
- Puffers with period 384
- Puffers with speed c/12