Tub with tail
| Tub with tail | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 8 | ||||||||
| Bounding box | 5 × 5 | ||||||||
| Frequency class | 15.8 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Charles Corderman Hugh Thompson | ||||||||
| Year of discovery | 1971 | ||||||||
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Tub with tail (or twit, originally from the acronym) is an 8-cell still life discovered by Charles Corderman and Hugh Thompson in 1971.[1][2] It is notable for its use in eater 5.
This still life is comprised of the normally stable tub with a normally unstable tail attached.
Commonness
- Main article: List of common still lifes
Tub with tail is the twenty-eighth most common still life in Achim Flammenkamp's census, being less common than very long boat but more common than very long ship.[3] It is also the thirty-seventh most common object on Adam P. Goucher's Catagolue.[4]
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.
Tub with tail(s) family
Gallery
| A fishhook turning into a tub with tail and back into a fishhook as it eats a loaf (click above to open LifeViewer) |
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
- ↑ Robert Wainwright (June 1971). Lifeline, vol 2.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
External links
- Tub with tail at the Life Lexicon
- Tub with tail at Adam P. Goucher's Catagolue
- The 9 eight-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 0/8tt.rle)
- Tub with tail at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Patterns with Catagolue frequency class 15
- Natural periodic objects
- Periodic objects with minimum population 8
- Patterns with 8 cells
- Patterns found by Charles Corderman
- Patterns found by Hugh Thompson
- Patterns found in 1971
- Patterns that can be constructed with 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 8 cells