Difference between revisions of "Merzenich's p64"
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==See also== | |||
* [[51P384]] | |||
==References== | ==References== | ||
Latest revision as of 21:17, 26 March 2024
| Merzenich's p64 | |||||||||
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 34 | ||||||||
| Bounding box | 21 × 21 | ||||||||
| Period | 64 | ||||||||
| Mod | 32 | ||||||||
| Heat | 20.75 | ||||||||
| Volatility | 0.97 | ||||||||
| Strict volatility | 0.97 | ||||||||
| Discovered by | Matthias Merzenich | ||||||||
| Year of discovery | 2010 | ||||||||
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Merzenich's p64 (or 4 blocks hassling 2 beehives and 2 R-pentominoes) is the smallest known period-64 oscillator, and was discovered by Matthias Merzenich on October 30, 2010.[1]
Two copies of this oscillator are seen in the period-64 pre-pulsar shuttle, constructed by Merzenich with the help of praosylen on June 20, 2015.[2]
A 14-glider synthesis of this oscillator was found by Ian07 on August 9, 2019,[3] which was improved to 10 gliders by Goldtiger997 the next day.[4]
The oscillator first appeared semi-naturally on February 12, 2022, in a soup by Charity Engine.[5] Since then, about 1 in 7×1010 soups in the correct symmetry (C2_1) form a Merzenich's p64 in the centre.
The active region in Merzenich's p64 ranks 31st in the list of common evolutionary sequences, and the region is identified as belonging to Merzenich's p64 rather than having a distinct name.
Gallery
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See also
References
- ↑ Matthias Merzenich (April 18, 2018). "osc-supplement pattern collection". Retrieved on October 28, 2020.
- ↑ Matthias Merzenich (June 20, 2015). Re: Thread For Your Accidental Discoveries (discussion thread) at the ConwayLife.com forums
- ↑ Ian07 (August 9, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Goldtiger997 (August 10, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ catglue (February 12, 2022). Message in #cgol on the Conwaylife Lounge Discord server
External links
- 1 period-64 oscillator at Mark D. Niemiec's Life Page
- Merzenich's p64 at Adam P. Goucher's Catagolue
- Patterns
- Oscillators with 34 cells
- Periodic objects with minimum population 34
- Patterns with 34 cells
- Patterns found by Matthias Merzenich
- Patterns found in 2010
- Patterns that can be constructed with 10 gliders
- Oscillators
- Oscillators with period 64
- Oscillators with mod 32
- Oscillators with heat 20
- Oscillators with volatility 0.97
- Oscillators with strict volatility 0.97
- Patterns with 180-degree rotation symmetry
- Non-flipping oscillators that turn 90 degrees
- Semi-natural periodic objects