Glider-producing switch engine
|Glider-producing switch engine|
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|View static image|
|Number of cells||123|
|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.
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.
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. This collision has the minimum number of gliders necessary to exhibit infinite growth, and is the only known 3-glider collision to do so.
- Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
- Robert Wainwright (June 1973). "Lifeline Volume 10". Lifeline 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
- Stabilized switch engine at the Life Lexicon
- Single switch engine puffer trains at the Life Objects Catalog