Aircraft carrier
Aircraft carrier | |||||||||||
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Pattern type | Strict still life | ||||||||||
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Number of cells | 6 | ||||||||||
Bounding box | 4×3 | ||||||||||
Frequency class | 12.0 | ||||||||||
Discovered by | John Conway | ||||||||||
Year of discovery | 1970 | ||||||||||
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Aircraft carrier (or simply carrier) is a 6-cell still life, and the smallest still life that has more than one island. It consists of two pre-blocks.
Commonness
Aircraft carrier is the fifteenth most common still life in Achim Flammenkamp's census, being less common than long barge but more common than paperclip.[1]
Aircraft carrier is the fifteenth most common still life on Adam P. Goucher's Catagolue, being less common than long barge but more common than paperclip. Among all still lifes with 6 cells, it is the fourth most common, being less common than barge but more common than snake.[2] It is also the twentieth most common object overall on Catagolue.
Glider synthesis
There are three 3-glider collisions that produce an aircraft carrier as well as another object. The first one leaves a stray block, the second a beehive and the third a blinker, leading to three two-stage 4-glider syntheses for the still life. Other 4-glider collisions that make a clean aircraft carrier are also known.
See also
References
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on March 30, 2010.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 17, 2022.
External links
- Aircraft carrier at the Life Lexicon
- The 5 six-bit still-lifes at Mark D. Niemiec's Life Page
- Patterns
- Patterns with Catagolue frequency class 12
- Natural periodic objects
- Periodic objects with minimum population 6
- Patterns with 6 cells
- Patterns found by John Conway
- Patterns found in 1970
- Patterns that can be constructed with 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 6 cells
- Patterns with 180-degree rotation symmetry