Traffic circle
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Traffic circle | |||||||||
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Pattern type | Oscillator | ||||||||
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Oscillator type | Shuttle | ||||||||
Number of cells | 172 | ||||||||
Bounding box | 48 × 48 | ||||||||
Period | 100 | ||||||||
Mod | 25 | ||||||||
Heat | 154.5 | ||||||||
Volatility | 0.90 | ||||||||
Strict volatility | 0.67 | ||||||||
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 synthesis for this oscillator on June 1, 2021.[2] Matti Ward reduced this to 77 gliders on November 10, 2021.[3] On March 18, 2024, KtT reduced the cost to 75 gliders.[4][5]
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
- ↑ KtT (March 18, 20214). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#6416832239) (March 18, 2024). Job triggered by Adam P. Goucher at GitLab Catagolue project.
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 70 and 79 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