Traffic circle
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| Traffic circle | |||||||||
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Oscillator type | Shuttle | ||||||||
| Number of cells | 172 | ||||||||
| Bounding box | 48 × 48 | ||||||||
| Period | 100 (mod: 25) | ||||||||
| Heat | 154.5 | ||||||||
| Volatility | 0.90 | 0.67 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Noam Elkies | ||||||||
| Year of discovery | 1994 | ||||||||
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Traffic circle (or p100 traffic jam) is a period-100 oscillator found by Noam Elkies on October 15, 1994.[1] It works by using four fumaroles and four molds to hassle a traffic jam so that it moves around in a circle.
GUYTU6J and iNoMed found an 81-glider for this oscillator on June 1, 2021.[2] Matti Ward reduced this to 77 gliders on November 10, 2021.[3]
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 16, 2009.
- ↑ iNoMed (June 2, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Matti Ward (November 10, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
External links
- Traffic circle at the Life Lexicon
- 172P100.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with between 170 and 179 cells
- Periodic objects with minimum population between 170 and 179
- Patterns with between 170 and 179 cells
- Patterns found by Noam Elkies
- Patterns found in 1994
- Patterns that can be constructed with between 80 and 89 gliders
- Oscillators
- Shuttles
- Oscillators with period 100
- Oscillators with mod 25
- Oscillators with heat between 150 and 159
- Oscillators with volatility 0.90
- Oscillators with strict volatility 0.67
- Non-flipping oscillators that turn 90 degrees