Mold
| Mold | |||||||||||
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| Pattern type | Oscillator | ||||||||||
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| Number of cells | 12 | ||||||||||
| Bounding box | 6×6 | ||||||||||
| Frequency class | 24.2 | ||||||||||
| Period | 4 | ||||||||||
| Mod | 2 | ||||||||||
| Heat | 7 | ||||||||||
| Volatility | 0.63 | ||||||||||
| Strict volatility | 0.53 | ||||||||||
| Discovered by | Achim Flammenkamp | ||||||||||
| Year of discovery | 1988 | ||||||||||
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Mold is a period-4 oscillator found by Achim Flammenkamp in 1988,[1] but not widely known until Dean Hickerson rediscovered it (and named it) in August 1989. In terms of its minimum population of 12 it ties with mazing as the smallest period-4 oscillator, but in terms of its 6×6 bounding box it wins outright. In fact, of all oscillators that fit in a 6×7 box it is the only one with period greater than 2.
It emits dot sparks, which can support other patterns such as four molds hassling eight blocks, traffic circle and "butter".[2]
Commonness
Mold is the twelfth most common naturally-occurring oscillator in Achim Flammenkamp's census, being less common than the spark coil but more common than the quadpole tie ship.[3] On Catagolue, it is the most common period 4 oscillator, being more common than mazing.[4]
The first natural mold stator variant, cis-mold on dock, occurred in May 2015.[5]
Glider synthesis
All strict still lifes with a population of 20 or fewer cells, as well as all oscillators and spaceships with 16 or fewer cells, are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ Entity Valkyrie (February 26, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Census". Catagolue. Retrieved on October 27, 2018.
- ↑ praosylen (May 7, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
- Mold at the Life Lexicon
- Mold at Adam P. Goucher's Catagolue
- 12P4.1 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Patterns with Catagolue frequency class 24
- Natural periodic objects
- Oscillators with 12 cells
- Periodic objects with minimum population 12
- Patterns with 12 cells
- Patterns found by Achim Flammenkamp
- Patterns found in 1988
- Patterns that can be constructed with 5 gliders
- Oscillators
- Oscillators with period 4
- Oscillators with mod 2
- Oscillators with heat 7
- Oscillators with volatility 0.63
- Oscillators with strict volatility 0.53
- Flipping oscillators
- Sparkers
- Sparkers with period 4
- Dot sparkers
- Moderate sparkers