Shift-mirrored bun: Difference between revisions
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'''Shift-mirrored bun''' is a {{slcells|14}}-[[cell]] strict [[still life]] consisting of two mutually stabilising [[bun]]s. It is one of six ways in which two buns can be arranged to create a still life, and one of the five which have two separate [[island]]s. | '''Shift-mirrored bun''' is a {{slcells|14}}-[[cell]] strict [[still life]] consisting of two mutually stabilising [[bun]]s. It is one of six ways in which two buns can be arranged to create a still life, and one of the five which have two separate [[island]]s. | ||
This specific | This specific [[isomer]] is [[Pattern naming|named]] ''shift-mirrored'' due to the two inducting faces being skewed from each other (hence ''shift''), and the "denser" parts of each island are on the same side (hence ''mirrored''). This is technically inconsistent with how the naming scheme works for other isomers, where "mirrored" indicates non-skewed inducting faces. This is the only isomer which is completely asymmetric, lacking both mirror and rotational symmetry. | ||
== [[List of common still lifes|Commonness]] == | == [[List of common still lifes|Commonness]] == | ||
Revision as of 21:18, 25 December 2021
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 14 | ||||||||
| Bounding box | 7 × 6 | ||||||||
| Frequency class | 28.6 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Shift-mirrored bun is a 14-cell strict still life consisting of two mutually stabilising buns. It is one of six ways in which two buns can be arranged to create a still life, and one of the five which have two separate islands.
This specific isomer is named shift-mirrored due to the two inducting faces being skewed from each other (hence shift), and the "denser" parts of each island are on the same side (hence mirrored). This is technically inconsistent with how the naming scheme works for other isomers, where "mirrored" indicates non-skewed inducting faces. This is the only isomer which is completely asymmetric, lacking both mirror and rotational symmetry.
Information on this still life's commonness with respect to other naturally-occurring patterns is currently unknown.
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 619 fourteen-bit still-lifes at Mark D. Niemiec's Life Page