Dinner table
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| Dinner table | |||||||||
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 33 | ||||||||
| Bounding box | 13 × 13 | ||||||||
| Period | 12 (mod: 3) | ||||||||
| Heat | 10.0 | ||||||||
| Volatility | 0.55 | 0.53 | ||||||||
| Kinetic symmetry | nrc | ||||||||
| Discovered by | Robert Wainwright | ||||||||
| Year of discovery | 1972 | ||||||||
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Dinner table is a period-12 oscillator. It was the first period 12 oscillator to be found, and was discovered by Robert Wainwright in 1972.[1][2] It consists of four eater 1s hassling a pre-beehive.
In terms of its minimum population of 33 cells, it was the smallest known non-trivial period 12 oscillator until the discovery of the 31-cell mold on fire-spitting.[3]
It can also be extended as an agar.
| An extension of dinner table (click above to open LifeViewer) RLE: here Plaintext: here |
Glider synthesis
On September 24, 2021, Aleph posted a final step for a synthesis,[4] which iNoMed used to complete a 58-glider synthesis.[5] Shortly after, Kazyan reduced the cost down to 19 gliders.[5] On July 28, 2024, Carson Cheng lowered the cost to 18 gliders.[6][7]
See also
References
- ↑ Robert Wainwright (October 1972). Lifeline, vol 6, page 3.
- ↑ Dean Hickerson's oscillator stamp collection.
- ↑ "Class 2 Objects Catalog". Retrieved on April 9, 2009.
- ↑ Aleph (September 24, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ 5.0 5.1 iNoMed (September 24, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Carson Cheng (July 28, 2024). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#7445612147) (July 28, 2024). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
- Dinner table at the Life Lexicon
- Dinner table at Adam P. Goucher's Catagolue
- 33P12.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 33 cells
- Periodic objects with minimum population 33
- Patterns with 33 cells
- Patterns found by Robert Wainwright
- Patterns found in 1972
- Patterns that can be constructed with 18 gliders
- Oscillators
- Oscillators with period 12
- Oscillators with mod 3
- Oscillators with heat 10
- Oscillators with volatility 0.55
- Oscillators with strict volatility 0.53
- Oscillators with nrc symmetry
- Agars