Two pulsar quadrants
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| Two pulsar quadrants | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 18 | ||||||||
| Bounding box | 10 × 10 | ||||||||
| Frequency class | 40.8 | ||||||||
| Period | 3 (mod: 3) | ||||||||
| Heat | 16 | ||||||||
| Volatility | 0.75 | 0.75 | ||||||||
| Kinetic symmetry | / | ||||||||
| Rotor type | Pulsar | ||||||||
| Discovered by | David Buckingham | ||||||||
| Year of discovery | 1973 | ||||||||
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Two pulsar quadrants is a period-3 oscillator that was found by David Buckingham in July 1973.[1]
A 10-glider synthesis of this oscillator was found by gmc_nxtman on July 12, 2017.[2] This was improved to 9 gliders by gooddogtyson on July 25, 2020.[3] On July 24, 2024, Carson Cheng lowered the cost to 8 gliders.[4][5]
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ gmc_nxtman (July 12, 2017). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ gooddogtyson (July 25, 2020). Message in #bots-and-mute-this on the Conwaylife Lounge Discord server
- ↑ Carson Cheng (July 24, 2024). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#7413438981) (July 24, 2024). Job triggered by Adam P. Goucher at GitLab Catagolue project.
External links
- Two pulsar quadrants at the Life Lexicon
- 18P3.38 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 40
- Natural periodic objects
- Oscillators with 18 cells
- Periodic objects with minimum population 18
- Patterns with 18 cells
- Patterns found by David Buckingham
- Patterns found in 1973
- Patterns that can be constructed with 8 gliders
- Oscillators
- Oscillators with period 3
- Oscillators with mod 3
- Oscillators with heat 16
- Oscillators with volatility 0.75
- Oscillators with strict volatility 0.75
- Oscillators with / symmetry
- Oscillators with rotor Pulsar
- Sparkers
- Sparkers with period 3
- Weak sparkers