Eater/block frob
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| Eater/block frob | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 20 | ||||||||
| Bounding box | 10 × 10 | ||||||||
| Period | 4 (mod: 4) | ||||||||
| Heat | 8.5 | ||||||||
| Volatility | 0.55 | 0.55 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | David Buckingham | ||||||||
| Year of discovery | Unknown | ||||||||
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Eater/block frob is a period-4 oscillator found by David Buckingham in 1976 or earlier.[1] It is composed of an eater 1, a block, and what is roughly a hook with tail. It is most useful in its use in the p4 bumper. It is an eater 5 constantly being renewed by an eater 1. The block can be replaced with a long hook with tail, and the eater 1 can be replaced with a LW emulator, MW emulator or HW emulator.
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
External links
- Eater/block frob at the Life Lexicon
- 20P4.4 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 20 cells
- Periodic objects with minimum population 20
- Patterns with 20 cells
- Patterns found by David Buckingham
- Patterns that can be constructed with 12 gliders
- Oscillators
- Oscillators with period 4
- Oscillators with mod 4
- Oscillators with heat 8
- Oscillators with volatility 0.55
- Oscillators with strict volatility 0.55
- Sparkers
- Sparkers with period 4
- Weak sparkers