Cis-boat trans-line tub
| Cis-boat trans-line tub | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 12 | ||||||||
| Bounding box | 7 × 7 | ||||||||
| Frequency class | 26.8 | ||||||||
| Static symmetry | n | ||||||||
| Discovered by | Robert Wainwright Everett Boyer | ||||||||
| Year of discovery | 1973 | ||||||||
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Cis-boat trans-line tub is a 12-cell still life.
Construction
This still life is known to be constructible with 5 gliders.[1] Two gliders suffice to convert a long boat into this still life; alternate syntheses can be found in Mark Niemiec's database.[2]
| A two-stage 5G synthesis[1] (click above to open LifeViewer) |
Occurrence
Among the 121 still lifes with 12 cells, this is the 32nd most common still life according to Catagolue.
There are no collisions in octohash, octo3obj or octo3g databases with this still life occurring in the ash.
Isomers
This still life is comprised of a normally stable tub and a normally stable boat connected by a three-cell-long line. This is one of two possible isomers, named cis due to the corner part of the boat being closer to the line; the other isomer, trans-boat trans-line tub, has this corner part facing outwards.
The closely related pattern "boat cis-line tub" is an induction coil, in much the same way as the integral is a still life whereas the house is an induction coil. Note that there is only one valid isomer for the cis-line arrangement, analogous to trans-boat trans-line tub, as the cis- arrangement would cause unwanted birth between the boat and tub.
| boat cis-line tub induction coil (click above to open LifeViewer) RLE: here Plaintext: here |
See also
References
- ↑ 1.0 1.1 xs12_0g0s256z121 at Adam P. Goucher's Catagolue
- ↑ The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-68.rle)
External links
- Cis-boat trans-line tub at Adam P. Goucher's Catagolue
- 12.107 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Patterns with Catagolue frequency class 26
- Natural periodic objects
- Periodic objects with minimum population 12
- Patterns with 12 cells
- Patterns found by Robert Wainwright
- Patterns found by Everett Boyer
- Patterns found in 1973
- Patterns that can be constructed with 5 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 12 cells
- Strict still lifes with n symmetry