Snacker: Difference between revisions
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|pentadecathlonid = 40P9.2 | |pentadecathlonid = 40P9.2 | ||
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'''Snacker''' is a [[pentadecathlon]] with [[eater 1]] stabilizers that force it into a lower [[period]] (from | '''Snacker''' is a [[pentadecathlon]] with [[eater 1]] stabilizers that force it into a lower [[period]] (from {{period|15|brief}} to {{period|9|brief}}). It was found by [[Mark Niemiec]] in {{year|1972}}. The stabilizers make the [[Polyomino#Dominoes|domino]] [[spark]] largely inaccessible, but the snacker is extensible as shown below and so a more accessible period 9 domino spark can be obtained – this is exactly the method that was used to create the first period {{period|18|brief}} oscillator, [[117P18]]. A more accessible domino spark can also be obtained using a different oscillator shown below. | ||
== | ==Gallery== | ||
{| | {| | ||
|- | |- | ||
|[[Image:Snacker2.png|framed|left|Additional pentadecathlons can be added to extend snacker. The alternate stabilization on the right was found by Dean Hickerson in April 1998.<br />{{JavaRLE|snacker2}}]] | |[[Image:Snacker2.png|framed|left|Additional pentadecathlons can be added to extend snacker. The alternate stabilization on the right was found by Dean Hickerson in April 1998.<br />{{JavaRLE|snacker2}}]] | ||
| | || {{EmbedViewer | ||
{{EmbedViewer | |||
|viewerconfig = #C [[ AUTOSTART GPS 3 LOOP 9 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 320 WIDTH 600 ]] | |viewerconfig = #C [[ AUTOSTART GPS 3 LOOP 9 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 320 WIDTH 600 ]] | ||
|pname = snacker2 | |pname = snacker2 | ||
|caption = A much more accessible | |caption = A much more accessible p9 domino sparker that is<br>only 10 cells larger, and its double variant.<br> | ||
|position = center | |||
}} | }} | ||
|} | |} | ||
Revision as of 04:45, 7 July 2019
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| Pattern type | Oscillator | ||||||||||
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| Number of cells | 40 | ||||||||||
| Bounding box | 20 × 11 | ||||||||||
| Period | 9 (mod: 9) | ||||||||||
| Heat | 26.2 | ||||||||||
| Volatility | 0.77 | 0.77 | ||||||||||
| Kinetic symmetry | Unspecified | ||||||||||
| Discovered by | Mark Niemiec | ||||||||||
| Year of discovery | 1972 | ||||||||||
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Snacker is a pentadecathlon with eater 1 stabilizers that force it into a lower period (from 15 to 9). It was found by Mark Niemiec in 1972. The stabilizers make the domino spark largely inaccessible, but the snacker is extensible as shown below and so a more accessible period 9 domino spark can be obtained – this is exactly the method that was used to create the first period 18 oscillator, 117P18. A more accessible domino spark can also be obtained using a different oscillator shown below.
Gallery
 Download RLE: click here |
|
See also
External links
- Snacker at the Life Lexicon
- 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 17 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
- Patterns with rectangular orthogonal symmetry
- Sparkers
- Sparkers with period 9
- Strong sparkers
- Domino sparkers
- Semi-natural periodic objects