Biting off more than they can chew
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| Biting off more than they can chew | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 22 | ||||||||
| Bounding box | 12 × 12 | ||||||||
| Period | 3 (mod: 3) | ||||||||
| Heat | 10.7 | ||||||||
| Volatility | 0.50 | 0.50 | ||||||||
| Kinetic symmetry | / | ||||||||
| Discovered by | Peter Raynham | ||||||||
| Year of discovery | 1972 | ||||||||
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Biting off more than they can chew (or eater-bound pond[1]) is a period-3 oscillator found by Peter Raynham in July 1972.[2][3] Its alternate name of "eater-bound pond" comes from the fact that in generation 1, the object between the two eater 1s is a predecessor of the pond.
A 13-glider synthesis of the oscillator was known by March 2021.[4] On June 2, 2024, wwei23 found a 10-glider synthesis based on an edgy fishhook synthesis found by Carson Cheng and Chris857.[5][6]
The oscillator can be extended by placing more copies of the middle object, rotating each new one by 180°:
| An extension of the oscillator (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
Higher-period analogues
The pond reaction is period-agnostic, so it works at higher periods. Three examples are shown below.
| Periods 6 with Sombrero, 13 with 66P13, and 30 with Queen bee shuttle (click above to open LifeViewer) |
See also
References
- ↑ "Eater-bound pond". The Life Lexicon. Stephen Silver. Retrieved on December 3, 2018.
- ↑ Robert Wainwright (September 1972). Lifeline, vol 5, page 1.
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ xp3_32aczx4b560o8gzy632 on Catagolue, archived on March 8, 2021
- ↑ wwei23 (June 2, 2024). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#6996692583) (June 2, 2024). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
- Biting off more than they can chew at the Life Lexicon
- 22P3.47 at Heinrich Koenig's Game of Life Object Catalogs
- Biting off more than they can chew at Adam P. Goucher's Catagolue
Categories:
- Patterns
- Oscillators with 22 cells
- Periodic objects with minimum population 22
- Patterns with 22 cells
- Patterns found by Peter Raynham
- Patterns found in 1972
- Patterns that can be constructed with 10 gliders
- Oscillators
- Oscillators with period 3
- Oscillators with mod 3
- Oscillators with heat 10
- Oscillators with volatility 0.50
- Oscillators with strict volatility 0.50
- Oscillators with / symmetry
- Semi-natural periodic objects