Bent keys
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| Bent keys | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 16 | ||||||||
| Bounding box | 12 × 5 | ||||||||
| Frequency class | 39.2 | ||||||||
| Period | 3 (mod: 3) | ||||||||
| Heat | 14.7 | ||||||||
| Volatility | 0.73 | 0.73 | ||||||||
| Kinetic symmetry | -e | ||||||||
| Discovered by | Dean Hickerson | ||||||||
| Year of discovery | 1989 | ||||||||
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Bent keys is a period-3 oscillator found by Dean Hickerson in August 1989.[1] It can be extended infinitely, like the odd keys.
In September 2004 Jason Summers found a 10-glider synthesis of this oscillator,[2] which was improved to 8 gliders by Jeremy Tan in June 2019,[3] and in July 2024, Carson Cheng found a 7-glider synthesis.[4]
Trans pulsar horn variant
The outer ends can also mutually stabilise an object comprised of two pulsar horns in C2_2 symmetry. Unlike the standard centre, this only works with the odd keys variant.
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See also
- Odd keys
- Short keys
- Jam, which it can support.
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ Jason Summers' jslife pattern collection.
- ↑ Jeremy Tan (June 7, 2019). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
- ↑ Carson Cheng (July 16, 2024). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
External links
- Bent keys at the Life Lexicon
- 18P3.29 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 39
- Natural periodic objects
- Oscillators with 16 cells
- Periodic objects with minimum population 16
- Patterns with 16 cells
- Patterns found by Dean Hickerson
- Patterns found in 1989
- Patterns that can be constructed with 7 gliders
- Oscillators
- Oscillators with period 3
- Oscillators with mod 3
- Oscillators with heat 14
- Oscillators with volatility 0.73
- Oscillators with strict volatility 0.73
- Oscillators with -e symmetry
- Sparkers
- Sparkers with period 3
- Moderate sparkers
- Dot sparkers