p45 pi-heptomino hassler
| p45 pi-heptomino hassler | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 29 | ||||||||
| Bounding box | 25 × 20 | ||||||||
| Period | 45 (mod: 45) | ||||||||
| Heat | 41.6 | ||||||||
| Volatility | 0.98 | 0.65 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Luke Kiernan | ||||||||
| Year of discovery | 2022 | ||||||||
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p45 pi-heptomino hassler is a period-45 oscillator found by Luke Kiernan on August 9, 2022.[1] Although other pi-heptomino hasslers with this period have been found previously, this one is by far the smallest, with only 29 cells in its minimum phase. It is also the smallest p45 oscillator overall, surpassing the 48-cell pentadecathlon on thumb 1.
Being a versatile sparker, the oscillator can be turned into a glider gun in several different ways.[2] The smallest of these has a bounding box of 42×25,[3] making it the smallest known gun with this period. The oscillator can also function as a filter for a period-30 glider stream, resulting in a p90 gun.[4] Two copies of this oscillator can also interact to produce an oscillator with period 180+360n and a population of 63, as discovered by Jeremy Tan.[5]
Carson Cheng found a 10-glider synthesis of this oscillator on the day of its discovery.[6]
References
- ↑ Carson Cheng (August 9, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ dani (August 9, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Luke Kiernan (August 9, 2022). Message in #cgol on the Conwaylife Lounge Discord server
- ↑ bubblegum (August 9, 2022). Message in #cgol on the Conwaylife Lounge Discord server
- ↑ Ian07 (August 9, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Carson Cheng (August 9, 2022). Message in #cgol on the Conwaylife Lounge Discord server
External links
- Patterns
- Oscillators with 29 cells
- Periodic objects with minimum population 29
- Patterns with 29 cells
- Patterns found by Luke Kiernan
- Patterns found in 2022
- Patterns that can be constructed with 10 gliders
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 45
- Oscillators with mod 45
- Oscillators with heat 41
- Oscillators with volatility 0.98
- Oscillators with strict volatility 0.65
- Sparkers
- Sparkers with period 45
- Dot sparkers
- Weak sparkers
- Domino sparkers
- Strong sparkers