Difference between revisions of "Snark"
(Not necessary, really. I think it says on the eater page that it functions as a one-time reflector) |
(Using RLE:Snark in isorule.py, the rulemin and rulemax) |
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|synthesis = 22 | |synthesis = 22 | ||
|synthesisRLE = true | |synthesisRLE = true | ||
|rulemin = B3/S23 | |||
|rulemax = B38/S238 | |||
|rulespecial = [[Conway's Game of Life|Conway Life]], [[Pedestrian Life]] | |||
|isorulemin = B3/S23 | |||
|isorulemax = B34c8/S234c5e6n8 | |||
|rle = true | |rle = true | ||
|viewerconfig = #C [[ WIDTH 600 HEIGHT 600 X 3 Y -3 THUMBSIZE 2 ZOOM 20 GPS 30 LOOP 128 ]] | |viewerconfig = #C [[ WIDTH 600 HEIGHT 600 X 3 Y -3 THUMBSIZE 2 ZOOM 20 GPS 30 LOOP 128 ]] |
Revision as of 10:33, 24 February 2019
Snark | |||||||||
View static image | |||||||||
Pattern type | Stable reflector | ||||||||
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Number of cells | 52 | ||||||||
Bounding box | 23 × 17 | ||||||||
Angle | 90° | ||||||||
Repeat time | 43 | ||||||||
Discovered by | Mike Playle | ||||||||
Year of discovery | 2013 | ||||||||
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The Snark is a 90° stable glider reflector discovered by Mike Playle in April 2013.[1] It is made up of two eaters, a block and a 31.4, the heart of the Snark. It is currently the fastest and the smallest 90° stable glider reflector, both in terms of the population and the bounding box. Another commonly-used stabilization of the catalyst is 34 bits, and many other variants are available. For a color-changing one, see the reflector in the stable reflector article, or use a bouncer (periodic).
four Snark catalyst variants --Top: original variant by Mike Playle Left: Shannon Omick (better clearance on a diagonal) Right: Heinrich Koenig (better clearance on a different diagonal) Bottom: Simon Ekström (better clearance on two diagonals) (click above to open LifeViewer) RLE: here Plaintext: here |
The base reaction was discovered by Dietrich Leithner about 1998, but it consumed another block.[2] A catalyst that could replace the block was found with Bellman, a program for searching catalytic reactions developed by Mike Playle.
Given its small repeat time, the snark made oscillators of previously unknown periods of 43 and 53 trivial.[3] It also made most large symmetrical Herschel-loop guns obsolete, since it is now possible to make use of the Herschel gliders with a shorter path of the Herschel track itself. [4]
References
- ↑ Mike Playle (April 25, 2013). "Just the place for a Snark!". Retrieved on March 27, 2016.
- ↑ Adam P. Goucher (February 17, 2010). "Re: Incomplete search patterns - try to complete". Retrieved on May 8, 2013.
- ↑ Matthias Merzenich (April 25, 2013). "Re: Just the place for a Snark!". Retrieved on March 27, 2016.
- ↑ Dave Greene (June 8, 2013). "Re: Just the place for a Snark!". Retrieved on April 5, 2017.
External links
- Snark at the Life Lexicon