Long hook with tail: Difference between revisions
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|by = 4 | |by = 4 | ||
|fc = 23.1 | |fc = 23.1 | ||
|discoverer = Robert Wainwright | |||
|discoveryear = 1972 | |||
|rulemin = B/S23 | |rulemin = B/S23 | ||
|rulemax = B35678/S012345678 | |rulemax = B35678/S012345678 | ||
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|pentadecathlonid = 9.8 | |pentadecathlonid = 9.8 | ||
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'''Long hook with tail''' is a {{cells|9}}-[[cell]] [[still life]]. It is the [[long]] version of a [[hook with tail]]. It is used in an alternate form of the [[tub-with-tail eater]] that allows the compression of [[Herschel]] [[Herschel loop|loop]] [[oscillator]]s to [[period]]s of {{period|57|brief}}, {{period|58|brief}}, {{period|59|brief}}, and {{period|60|brief}}. | '''Long hook with tail''' is a {{cells|9}}-[[cell]] [[still life]]. It is the [[long]] version of a [[hook with tail]]. It is used in an alternate form of the [[tub-with-tail eater]] that allows the compression of [[Herschel]] [[Herschel loop|loop]] [[oscillator]]s to [[period]]s of {{period|57|brief}}, {{period|58|brief}}, {{period|59|brief}}, and {{period|60|brief}}. It was found by [[Robert Wainwright]] in {{year|1972}}, and was one of the last 9-bit still lifes to be reported.<ref>{{CiteLifeline|vol=5|pages=pages 4, 6}}</ref> | ||
== [[List of common still lifes|Commonness]] == | == [[List of common still lifes|Commonness]] == | ||
Revision as of 05:32, 6 March 2022
| Long hook with tail | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 9 | ||||||||
| Bounding box | 6 × 4 | ||||||||
| Frequency class | 23.1 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Robert Wainwright | ||||||||
| Year of discovery | 1972 | ||||||||
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Long hook with tail is a 9-cell still life. It is the long version of a hook with tail. It is used in an alternate form of the tub-with-tail eater that allows the compression of Herschel loop oscillators to periods of 57, 58, 59, and 60. It was found by Robert Wainwright in 1972, and was one of the last 9-bit still lifes to be reported.[1]
It is the 129th most common still life on Adam P. Goucher's Catagolue. Of the ten 9-cell still lifes, it is the second rarest.
All strict still lifes with a population of 23 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 35 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
See also
External links
- The 10 nine-bit still-lifes at Mark D. Niemiec's Life Page
- ↑ Robert Wainwright (September 1972). Lifeline, vol 5, pages 4, 6.
Categories:
- Patterns
- Patterns with Catagolue frequency class 23
- Natural periodic objects
- Periodic objects with minimum population 9
- Patterns with 9 cells
- Patterns found by Robert Wainwright
- Patterns found in 1972
- Patterns that can be constructed with 5 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 9 cells
- Diagonal line stabilisations