Quad
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| Quad | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Oscillator type | Muttering moat | ||||||||
| Family | Barberpole | ||||||||
| Number of cells | 16 | ||||||||
| Bounding box | 6 × 6 | ||||||||
| Period | 2 | ||||||||
| Mod | 1 | ||||||||
| Heat | 8 | ||||||||
| Volatility | 0.40 | ||||||||
| Strict volatility | 0.40 | ||||||||
| Rotor type | Clock | ||||||||
| Discovered by | Robert Kraus | ||||||||
| Year of discovery | 1971 | ||||||||
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Quad (or barberpole intersection[1]) is a period 2 oscillator and muttering moat that was found in April 1971 by Robert Kraus. It has the same rotor as the clock. It and mold are the only flippers that fit inside a 6×6 bounding box; however, mold is period 4.
See also
References
External links
- Quad at the Life Lexicon
- Quad at Adam P. Goucher's Catagolue
- 16P2.19 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 16 cells
- Periodic objects with minimum population 16
- Patterns with 16 cells
- Patterns found by Robert Kraus
- Patterns found in 1971
- Patterns that can be constructed with 10 gliders
- Oscillators
- Barberpole variants
- Muttering moats
- Oscillators with period 2
- Oscillators with mod 1
- Oscillators with heat 8
- Oscillators with volatility 0.40
- Oscillators with strict volatility 0.40
- Oscillators with rotor Clock
- Patterns with 90-degree rotation symmetry
- Flipping oscillators