Difference between revisions of "Quadri-Snark"
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The '''quadri-Snark''' is a [[period]]-multiplying [[colour-preserving]] [[signal]] [[conduit]] found by [[Tanner Jacobi]] in October {{year|2017}}, producing one output [[glider]] for every four input gliders. It is made by replacing one of the [[eater]]s in a [[tremi-Snark]] with a [[catalyst]] found using [[Bellman]]. The catalyst cause the formation of a [[tub]] which then requires an additional glider to delete. However, this adds 5 [[tick]]s to the [[repeat time]], so that it becomes 48. If period quadrupling is needed with a [[colour-changing]] reaction, a [[CP semi-Snark]], [[CC semi-Snark]] and the regular [[Snark]] can be used in series, or a period-multiplying [[Herschel conduit]] can be connected to a [[syringe]] and an appropriately chosen [[Herschel-to-glider]] [[converter]]. | The '''quadri-Snark''' is a [[period]]-multiplying [[colour-preserving]] [[signal]] [[conduit]] found by [[Tanner Jacobi]] in October {{year|2017}}, producing one output [[glider]] for every four input gliders.<ref name="post52335" /> It is made by replacing one of the [[eater]]s in a [[tremi-Snark]] with a [[catalyst]] found using [[Bellman]]. The catalyst cause the formation of a [[tub]] which then requires an additional glider to delete. However, this adds 5 [[tick]]s to the [[repeat time]], so that it becomes 48. If period quadrupling is needed with a [[colour-changing]] reaction, a [[CP semi-Snark]], [[CC semi-Snark]] and the regular [[Snark]] can be used in series, or a period-multiplying [[Herschel conduit]] can be connected to a [[syringe]] and an appropriately chosen [[Herschel-to-glider]] [[converter]]. | ||
The quadri-Snark was part of a series of new [[stable]] [[pulse divider]]s (the others being the [[tremi-Snark]] and the [[semi-cenark]]s) which collectively ranked third place in the [[Pattern of the Year]] 2017 competition on the [[ConwayLife.com]] forums, behind [[Tanner's p46]] and the [[2-engine Cordership]].<ref name="post56715" /> | |||
==See also== | ==See also== | ||
* [[Tremi-Snark]] | * [[Tremi-Snark]] | ||
* [[Quinti-Snark]] | * [[Quinti-Snark]] | ||
==References== | |||
<references> | |||
<ref name="post52335">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Thread For Your Bellman Finds | |||
|p = 52335 | |||
|author = Tanner Jacobi | |||
|date = October 24, 2017 | |||
}}</ref> | |||
<ref name="post56715">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Pattern of the Year 2017 -- votes | |||
|p = 56715 | |||
|author = Dave Greene | |||
|date = February 19, 2018 | |||
}}</ref> | |||
</references> | |||
==External links== | ==External links== | ||
{{LinkLexicon|lex_q.htm#quadrisnark}} | {{LinkLexicon|lex_q.htm#quadrisnark}} | ||
Revision as of 04:11, 19 March 2020
| Quadri-Snark | |||||||
| View static image | |||||||
| Pattern type | Stable reflector | ||||||
|---|---|---|---|---|---|---|---|
| Number of cells | 70 | ||||||
| Bounding box | 25 × 22 | ||||||
| Angle | 90° | ||||||
| Repeat time | 48 | ||||||
| Period multiplier | 4× | ||||||
| Colour | Colour-preserving | ||||||
| Discovered by | Tanner Jacobi | ||||||
| Year of discovery | 2017 | ||||||
| |||||||
The quadri-Snark is a period-multiplying colour-preserving signal conduit found by Tanner Jacobi in October 2017, producing one output glider for every four input gliders.[1] It is made by replacing one of the eaters in a tremi-Snark with a catalyst found using Bellman. The catalyst cause the formation of a tub which then requires an additional glider to delete. However, this adds 5 ticks to the repeat time, so that it becomes 48. If period quadrupling is needed with a colour-changing reaction, a CP semi-Snark, CC semi-Snark and the regular Snark can be used in series, or a period-multiplying Herschel conduit can be connected to a syringe and an appropriately chosen Herschel-to-glider converter.
The quadri-Snark was part of a series of new stable pulse dividers (the others being the tremi-Snark and the semi-cenarks) which collectively ranked third place in the Pattern of the Year 2017 competition on the ConwayLife.com forums, behind Tanner's p46 and the 2-engine Cordership.[2]
See also
References
- ↑ Tanner Jacobi (October 24, 2017). Re: Thread For Your Bellman Finds (discussion thread) at the ConwayLife.com forums
- ↑ Dave Greene (February 19, 2018). Re: Pattern of the Year 2017 -- votes (discussion thread) at the ConwayLife.com forums
External links
- Quadri-Snark at the Life Lexicon