Trans-boat trans-line tub
| Trans-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 | 27.9 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Robert Wainwright Everett Boyer | ||||||||
| Year of discovery | 1973 | ||||||||
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Trans-boat trans-line tub is an 12-cell still life.
This still life is comprised of a normally stable tub and a normally stable boat connected by a line. This is one of two possible isomers, named trans due to the corner part of the boat facing outwards from the line; the other isomer, cis-boat trans-line tub, has this corner part tucked inwards.
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.
Among the 121 still lifes with 12 cells, this is the 45th most common still life according to Catagolue.
A 5-glider synthesis of this still life was found in January 2020.[1]
See also
References
- ↑ Ian07 (January 18, 2020). Re: Randomly enumerating glider syntheses (discussion thread) at the ConwayLife.com forums
External links
- Trans-boat trans-line tub at Adam P. Goucher's Catagolue
- The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (12.67)
- 12.48 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Patterns with Catagolue frequency class 27
- 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