p76 pi-heptomino hassler
| p76 pi-heptomino hassler | |||||||||||||
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| Pattern type | Oscillator | ||||||||||||
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| Number of cells | 82 | ||||||||||||
| Bounding box | 29 × 36 | ||||||||||||
| Period | 76 (mod: 76) | ||||||||||||
| Heat | 83.3 | ||||||||||||
| Volatility | 0.91 | 0.79 | ||||||||||||
| Kinetic symmetry | Unspecified | ||||||||||||
| Discovered by | David Raucci | ||||||||||||
| Year of discovery | 2021 | ||||||||||||
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p76 pi-heptomino hassler is a small period-76 oscillator found by David Raucci on April 11, 2021. It was originally found in the rotationally symmetric form of two pi heptominoes and two period-4 oscillators;[1] this form with a smaller period-4 oscillator has 82 cells. A monomer was found later the same day by James Pascua,[2] which was then improved by Matthias Merzenich; this is the form with the minimum bounding box at 28 × 28.[3] On December 18, cvojan discovered that the oscillator could be stabilized by the traffic stop; this form has the same bounding box but an even smaller population of 57 cells, and was formerly the smallest-known period-76 oscillator,[4] until the discovery of mold on 44P38 in 2022.
In its dual form, the bottom pi heptomino and associated heavyweight emulator can be moved one or two cells to the right, and the oscillator will still work.
On October 16, 2021, Raucci discovered that two of these oscillators could be used to create a p152 loaf hassler.[5]
Gallery
| The monomer in its former smallest form by bounding box (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| The monomer in its current smallest form by population (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| SKOP 228: unix on p76 pi-heptomino hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| SKOP 304: Rob's p16 on p76 pi-heptomino hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
| SKOP 380: fumarole on p76 pi-heptomino hassler (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
See also
References
- ↑ David Raucci (April 11, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ James Pascua (April 11, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Matthias Merzenich (April 11, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ cvojan (December 18, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ David Raucci (October 16, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
External links
- Patterns
- Oscillators with 82 cells
- Periodic objects with minimum population 82
- Patterns with 82 cells
- Patterns found by David Raucci
- Patterns found in 2021
- Patterns that can be constructed with between 50 and 59 gliders
- Patterns that can be constructed with 26 gliders
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 76
- Oscillators with mod 76
- Oscillators with heat 83
- Oscillators with volatility 0.91
- Oscillators with strict volatility 0.79
- Patterns with 180-degree rotation symmetry
- Sparkers
- Sparkers with period 76
- Obo sparkers
- Strong sparkers
- Pi-heptomino hasslers