Gray counter
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| Gray counter | |||||||||
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| View static image | |||||||||
| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 26 | ||||||||
| Bounding box | 13 × 9 | ||||||||
| Period | 4 | ||||||||
| Mod | Unknown | ||||||||
| Heat | 2 | ||||||||
| Volatility | 0.13 | ||||||||
| Strict volatility | Unknown | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | 1971 | ||||||||
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Gray counter is a period 4 oscillator that was found in 1971. The interior rotor simulates a cycle through the Gray codes from 0 to 3.
The 5-cell long sides of the main part of the stator require induction coils: the option with the smallest population (as well as the highest symmetry) uses two tubs as pictured. A smaller bounding box may be reached using snakes or bi-blocks.
See also
External links
- Gray code at Wikipedia
- Gray counter at the Life Lexicon
Categories:
- Patterns
- Oscillators with 26 cells
- Periodic objects with minimum population 26
- Patterns with 26 cells
- Patterns found in 1971
- Patterns that can be constructed with 30 gliders
- Oscillators
- Oscillators with period 4
- Oscillators with heat 2
- Oscillators with volatility 0.13
- Patterns with rectangular orthogonal symmetry
- Billiard table configurations