Pond
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| Pond | |||||||||||
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| Pattern type | Strict still life | ||||||||||
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| Number of cells | 8 | ||||||||||
| Bounding box | 4×4 | ||||||||||
| Frequency class | 5.0 | ||||||||||
| Discovered by | JHC group | ||||||||||
| Year of discovery | 1970 | ||||||||||
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Pond is an 8-cell still life discovered by the JHC group in 1970.[1] It is the smallest lake, followed by the 24-cell lake 2.
It can be seen as a photonegative block.
Commonness
The pond is the sixth most common still life in Achim Flammenkamp's census, being slightly less common than tub and more common than ship.[2] It is also the ninth most common object on Adam P. Goucher's Catagolue.[3]
Prepond
The prepond is a common predecessor of the pond. The prepond turns into a pond in 32 Life-like rules, from B3/S23 to B378/S23678, but it dies out in HighLife. Consequently, the pond occurs more than twice as commonly in Game of Life than in HighLife.
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
- ↑ 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
- Pond at the Life Lexicon
- Pond at Adam P. Goucher's Catagolue
- The 9 eight-bit still-lifes at Mark D. Niemiec's Life Page
Categories:
- Patterns
- Patterns with Catagolue frequency class 5
- Natural periodic objects
- Periodic objects with minimum population 8
- Patterns with 8 cells
- Patterns found by JHC group
- Patterns found in 1970
- Patterns that can be constructed with 2 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 8 cells
- Patterns with complete square symmetry
