p156 Hans Leo hassler
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| p156 Hans Leo hassler | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 157 | ||||||||
| Bounding box | 33 × 40 | ||||||||
| Period | 156 (mod: 78) | ||||||||
| Heat | 130.3 | ||||||||
| Volatility | 0.84 | 0.39 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Noam Elkies | ||||||||
| Year of discovery | 1995 | ||||||||
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P156 Hans Leo hassler[note 1] is a period-156 traffic light hassler discovered by Noam Elkies on January 4, 1995,[1] and was the first period 156 oscillator to be found. It features two crowns turning a traffic light into a B-heptomino, and two eater 1s that then turn the B-heptomino back into a traffic light.
Elkies also found that the oscillator has several simple variants with an alternative phase of one of the crowns, leading to a period 144 version. It can even be made to be period 96 with figure eights, or period 132 with two copies of unix.
On November 10, 2019, Entity Valkyrie found a period 288 version of this oscillator.[2]
Image gallery
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See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on April 16, 2020.
- ↑ Entity Valkyrie (November 10, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
Notes
- ↑ The name could be a reference to Hans Leo Hassler, a famous German composer.
External links
Categories:
- Patterns
- Oscillators with between 150 and 159 cells
- Periodic objects with minimum population between 150 and 159
- Patterns with between 150 and 159 cells
- Patterns found by Noam Elkies
- Patterns found in 1995
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 156
- Oscillators with mod 78
- Oscillators with heat between 130 and 139
- Oscillators with volatility 0.84
- Oscillators with strict volatility 0.39
- Non-flipping oscillators that turn 180 degrees