Glider-producing switch engine: Difference between revisions
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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 [[block]]s to produce various [[still life]]s, several [[blinker]]s, and a [[glider]] every 384 [[generation]]s. | The '''glider-producing switch engine''' (or '''glider-making switch engine''') is a [[puffer]] that was found by [[Charles Corderman]] in the early 1970s.<ref>{{CiteLifeline|vol=4|page=page 2}}</ref> It consists of a [[switch engine]] reacting with [[block]]s to produce various [[still life]]s, several [[blinker]]s, and a [[glider]] every 384 [[generation]]s. | ||
Because of its easy construction (see its predecessors below), it has appeared in some superlinear growth patterns including [[mosquito 3]]. | Because of its easy construction (see its predecessors below), it has appeared in some superlinear growth patterns including [[mosquito 3]]. | ||
Revision as of 03:09, 6 March 2022
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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.[1] 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.[2]
Time bomb
The time bomb is a 17-cell pattern found by Douglas G. Petrie that evolves into a glider-producing switch engine.[3][4]
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.[5] 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
- ↑ Robert Wainwright (December 1971). Lifeline, vol 4.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
- ↑ Robert Wainwright (June 1973). Lifeline, vol 10, page 3.
- ↑ "Time bomb". The Life Lexicon. Stephen Silver. Retrieved on May 16, 2009.
- ↑ Michael Simkin (October 24, 2014). Re: Making switch-engines (discussion thread) at the ConwayLife.com forums
External links
- Stabilized switch engine at the Life Lexicon
- Single switch engine puffer trains at the Life Objects Catalog
- Glider-producing switch engine at Adam P. Goucher's Catagolue (linear growth)
- 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