p76 pi-heptomino shuttle
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- Not to be confused with p76 pi-heptomino hassler.
p76 pi-heptomino shuttle | |||||||||
View static image | |||||||||
Pattern type | Oscillator | ||||||||
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Number of cells | 52 | ||||||||
Bounding box | 27 × 20 | ||||||||
Period | 76 (mod: 38) | ||||||||
Heat | 25.1 | ||||||||
Volatility | 0.93 | 0.90 | ||||||||
Kinetic symmetry | -e+e | ||||||||
Discovered by | Carson Cheng | ||||||||
Year of discovery | 2023 | ||||||||
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p76 pi-heptomino shuttle is a small period-76 oscillator found by Carson Cheng on September 24, 2023.[1] At 52 cells, it is the smallest known period-76 oscillator by population. Two pi-heptominoes are each perturbed by a fishhook. This particular reaction leaves a blinker and a larger active region. Using a known transparent beehive reaction using two blinkers, these blinkers can be eaten by the transparent beehive, and the spark it creates interacts with the other larger pair of active regions to then form two pi-heptominoes that can then have the same thing happen in the other direction, making a shuttle.
Chris857 found a 20-glider synthesis of the shuttle the day after its discovery.[2][3]
Gallery
The transparent beehive reaction (click above to open LifeViewer) |
The smallest known oscillator of period 228 is an LCM oscillator comprised of a pulsar quadrant and a p76 pi-heptomino shuttle.[4] (click above to open LifeViewer) Catagolue: here |
See also
References
- ↑ Carson Cheng (September 24, 2023). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Chris857 (September 17, 2023). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ shinjuku (#5154514610) (September 25, 2023). Job triggered by Adam P. Goucher at GitLab Catagolue project.
- ↑ Period1GliderGun (January 28, 2024). Re: Smallest Known Oscillators to p106 (and Beyond) (discussion thread) at the ConwayLife.com forums
External links
Categories:
- Patterns
- Oscillators with 52 cells
- Periodic objects with minimum population 52
- Patterns with 52 cells
- Patterns found by Carson Cheng
- Patterns found in 2023
- Patterns that can be constructed with 20 gliders
- Oscillators
- Oscillators with period 76
- Oscillators with mod 38
- Oscillators with heat 25
- Oscillators with volatility 0.93
- Oscillators with strict volatility 0.90
- Oscillators with -e+e symmetry
- Pi-heptomino hasslers