Cis-mirrored long bookend
| Cis-mirrored long bookend | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 16 | ||||||||
| Bounding box | 7 × 5 | ||||||||
| Frequency class | 22.6 | ||||||||
| Static symmetry | -c | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Cis-mirrored long bookend is a 16-cell strict still life consisting of two mutually stabilising long bookends. It is one of five ways in which two long bookends can be arranged to create a still life.
This specific isomer is named cis-mirrored due to the two inducting faces not being skewed from each other (hence mirrored), and the "denser" parts of each island are on the same side (hence cis). As such, it is the only one of the six with mirror symmetry.
Commonness
It is the 109th most common still life on Adam P. Goucher's Catagolue, being less common than boat tie long boat but more common than xs19_69bo7pic. It is the 7th most common still life with 16 cells, being less common than trans-bun and dove but more common than trans-ship on dock.
Glider synthesis
All strict still lifes with a population of 22 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
External links
- 16.612 at Heinrich Koenig's Game of Life Object Catalogs
- The 3286 sixteen-bit still-lifes at Mark D. Niemiec's Life Page