Eater/block frob
Revision as of 23:08, 1 March 2023 by Carson Cheng (talk | contribs) (Revert synthesis update (that 10G was not valid))
| 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] Composed of an eater 1, a block, and what is roughly a melusine, it is essentially a tub-with-tail eater constantly being hassled. "Frob" is used by MIT as a generic term meaning "thing".[2]
The block can be replaced with a long hook with tail, and the eater 1 can be replaced with an eater bridge eater or an emulator.
Its grin makes it useful in the p4 bumper.
This oscillator first appeared naturally on April 3, 2022, in a soup found by Charity Engine using apgsearch.[3]
Carson Cheng found an 11-glider synthesis of this oscillator on June 30, 2022,[4].
See also
References
External links
- Eater/block frob at the Life Lexicon
- Eater/block frob at Mark D. Niemiec's Life Page
- 20P4.4 at Heinrich Koenig's Game of Life Object Catalogs
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ 2.0 2.1 Mark Niemiec (November 27, 2016). Re: Help with names (discussion thread) at the ConwayLife.com forums
- ↑ 3.0 3.1 Ian07 (April 3, 2022). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ 4.0 4.1 Carson Cheng (June 28, 2022). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
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 11 gliders
- Patterns that can be constructed with 8 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
- Natural periodic objects