Glider-producing switch engine: Difference between revisions
replaced 2 images with rles in viewers; enlarged debris image |
m replaced rle with pname in viewer |
||
| Line 44: | Line 44: | ||
{{EmbedViewer | {{EmbedViewer | ||
| | |pname = timebomb | ||
|position = left | |position = left | ||
|viewerconfig = #C [[ THUMBSIZE 2 ]] | |viewerconfig = #C [[ THUMBSIZE 2 ]] | ||
|caption = | |caption = Time bomb<br /> | ||
}} | }} | ||
{{EmbedViewer | {{EmbedViewer | ||
| | |pname = gliderproducingswitchenginepredecessor2 | ||
|position = center | |position = center | ||
|viewerconfig = #C [[ THUMBSIZE 2 ]] | |viewerconfig = #C [[ THUMBSIZE 2 ]] | ||
Revision as of 23:16, 24 October 2021
| Glider-producing switch engine | |||||||||
| View animated image | |||||||||
| View static image | |||||||||
| Pattern type | Puffer | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 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 | ||||||||
| |||||||||
| |||||||||
| |||||||||
| |||||||||
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.
Image gallery
 |
| Another simple predecessor of the glider-producing switch engine (click above to open LifeViewer) RLE: here Plaintext: here |
References
- ↑ 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