Snacker: Difference between revisions
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|v = 0.77 | |v = 0.77 | ||
|sv = 0.77 | |sv = 0.77 | ||
|symmetry = +e | |||
|discoverer = Mark Niemiec | |discoverer = Mark Niemiec | ||
|discoveryear = 1972 | |discoveryear = 1972 | ||
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|isorulemin = B3-ckny/S23ainry | |isorulemin = B3-ckny/S23ainry | ||
|isorulemax = B2i34-aejn5-aeiq6-i7c/S234-aijrw5-aiqy6-c | |isorulemax = B2i34-aejn5-aeiq6-i7c/S234-aijrw5-aiqy6-c | ||
|synthesis = | |synthesis = 16 | ||
|synthesisRLE = true | |synthesisRLE = true | ||
|plaintext = true | |plaintext = true | ||
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|caption = Additional pentadecathlons can be added to extend snacker, as used in [[117P18]]. The alternate stabilization on the right was found by Dean Hickerson in April {{year|1998}} | |caption = Additional pentadecathlons can be added to extend snacker, as used in [[117P18]]. The alternate stabilization on the right was found by Dean Hickerson in April {{year|1998}} | ||
|style = width:300px; | |style = width:300px; | ||
|apgcode = xp9_o8geheg8oz0230o032zx1u1zx16hzy02t2zy02d2zc453x354c | |||
}} | }} | ||
==See also== | == See also == | ||
* [[Worker bee]] | * [[Worker bee]] | ||
* [[Period-54 glider gun]], which uses a snacker | * Former smallest [[Period-54 glider gun]], which uses a snacker | ||
* [[p29 pentadecathlon hassler]] | * [[p29 pentadecathlon hassler]] | ||
* [[72P119]] | * [[72P119]] | ||
==References== | == References == | ||
<references> | <references> | ||
<ref name="post29415">{{LinkForumThread | <ref name="post29415">{{LinkForumThread | ||
| Line 56: | Line 58: | ||
</references> | </references> | ||
==External links== | == External links == | ||
* {{LinkLexicon|lex_s.htm#snacker}} | * {{LinkLexicon|lex_s.htm#snacker}} | ||
* {{LinkCatagolue|xp9_32acxca23zy04r4zy04r4zo8a6x6a8o}} | * {{LinkCatagolue|xp9_32acxca23zy04r4zy04r4zo8a6x6a8o}} | ||
* {{LinkPentadecathlonObject|40P9.2}} | * {{LinkPentadecathlonObject|40P9.2}} | ||
{{Sparker|p=9|type=domino|strength=strong}} | {{Sparker|p=9|type=domino|strength=strong}} | ||
{{seminatural}} | {{seminatural}} | ||
[[Category:Extendable oscillators]] | [[Category:Extendable oscillators]] | ||
__NOTOC__ | __NOTOC__ | ||
Latest revision as of 11:06, 14 April 2025
| Snacker | |||||||||||
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| Pattern type | Oscillator | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 40 | ||||||||||
| Bounding box | 20 × 11 | ||||||||||
| Period | 9 (mod: 9) | ||||||||||
| Heat | 26.2 | ||||||||||
| Volatility | 0.77 | 0.77 | ||||||||||
| Kinetic symmetry | +e | ||||||||||
| Discovered by | Mark Niemiec | ||||||||||
| Year of discovery | 1972 | ||||||||||
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Snacker is a period-9 oscillator in which four eater 1s hassle a pentadecathlon, found by Mark Niemiec in 1972.[1][2]
The snacker produces domino sparks, which can be used for a p36 toad hassler. In other cases the sparks are largely inaccessible due to the eaters; however, the snacker can be extended by putting more pentadecathlons as shown below, or an alternative eater which is also used in L200 can be used, and so a more accessible period 9 domino spark can be obtained -- this method was used to create the first period-18 oscillator, 117P18. Stronger domino sparkers are also known, for example 50P9 and 104P9.
This oscillator first appeared semi-naturally in the form stabilized by fourteeners instead of eater 1s in March 2016.[3]
| Additional pentadecathlons can be added to extend snacker, as used in 117P18. The alternate stabilization on the right was found by Dean Hickerson in April 1998 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
See also
- Worker bee
- Former smallest Period-54 glider gun, which uses a snacker
- p29 pentadecathlon hassler
- 72P119
References
- ↑ Robert Wainwright (March 1973). Lifeline, vol 9, page 3.
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ Maia Karpovich (March 28, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
- Snacker at the Life Lexicon
- Snacker at Adam P. Goucher's Catagolue
- 40P9.2 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 40 cells
- Periodic objects with minimum population 40
- Patterns with 40 cells
- Patterns found by Mark Niemiec
- Patterns found in 1972
- Patterns that can be constructed with 16 gliders
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 9
- Oscillators with mod 9
- Oscillators with heat 26
- Oscillators with volatility 0.77
- Oscillators with strict volatility 0.77
- Oscillators with +e symmetry
- Sparkers
- Sparkers with period 9
- Domino sparkers
- Strong sparkers
- Semi-natural periodic objects
- Extendable oscillators