Monogram: Difference between revisions
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synthesis reference |
updated synthesis |
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|isorulemin = B3einy/S2-n3e | |isorulemin = B3einy/S2-n3e | ||
|isorulemax = B2ekn34-aeik5-nr678/S01c234-z5-e678 | |isorulemax = B2ekn34-aeik5-nr678/S01c234-z5-e678 | ||
|synthesis = | |synthesis = 7 | ||
|synthesisRLE = true | |synthesisRLE = true | ||
|plaintext = true | |plaintext = true | ||
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It first appeared [[semi-natural]]ly in September {{year|2014}} in a [[soup]] found by [[Josh Ball]] using [[apgsearch]].<ref name="post13516" /> It later appeared in an asymmetric soup on May 5, {{year|2015}}.<ref name="post19372" /> | It first appeared [[semi-natural]]ly in September {{year|2014}} in a [[soup]] found by [[Josh Ball]] using [[apgsearch]].<ref name="post13516" /> It later appeared in an asymmetric soup on May 5, {{year|2015}}.<ref name="post19372" /> | ||
[[Ivan Fomichev]] found a 12-glider [[synthesis]] for a monogram based on an asymmetric soup on October 18, {{year|2015}}.<ref name="post23928" /> This was reduced to {{gliders|8|brief}} gliders by [[GUYTU6J]] using another soup on May 22, {{year|2021}}.<ref name=" | [[Ivan Fomichev]] found a 12-glider [[synthesis]] for a monogram based on an asymmetric soup on October 18, {{year|2015}}.<ref name="post23928" /> This was reduced to {{gliders|8|brief}} gliders by [[GUYTU6J]] using another soup on May 22, {{year|2021}},<ref name="post130643" /> and then to {{gliders|7|brief}} gliders by [[MathAndCode]] on July 28.<ref name="post134187" /> | ||
==References== | ==References== | ||
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|author = GUYTU6J | |author = GUYTU6J | ||
|date = May 22, 2021 | |date = May 22, 2021 | ||
}}</ref> | |||
<ref name="post134187">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Synthesising Oscillators | |||
|p = 134187 | |||
|author = MathAndCode | |||
|date = July 28, 2021 | |||
}}</ref> | }}</ref> | ||
</references> | </references> | ||
Revision as of 01:29, 29 July 2021
| Monogram | |||||||||
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| View static image | |||||||||
| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 18 | ||||||||
| Bounding box | 7 × 7 | ||||||||
| Frequency class | 40.9 | ||||||||
| Period | 4 (mod: 2) | ||||||||
| Heat | 14 | ||||||||
| Volatility | 0.88 | 0.88 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Dean Hickerson | ||||||||
| Year of discovery | 1989 | ||||||||
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Monogram (or initials[1] or JHC[2]) is a period-4 oscillator that was found by Dean Hickerson on August 11, 1989.[3] It produces some weak sparks which can be utilized in e.g. the stabilization of the carnival shuttle.
It first appeared semi-naturally in September 2014 in a soup found by Josh Ball using apgsearch.[4] It later appeared in an asymmetric soup on May 5, 2015.[5]
Ivan Fomichev found a 12-glider synthesis for a monogram based on an asymmetric soup on October 18, 2015.[6] This was reduced to 8 gliders by GUYTU6J using another soup on May 22, 2021,[7] and then to 7 gliders by MathAndCode on July 28.[8]
References
- ↑ "Initials". The Life Lexicon. Stephen Silver. Retrieved on June 13, 2009.
- ↑ "JHC". The Life Lexicon. Stephen Silver. Retrieved on April 30, 2009.
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ Josh Ball (September 28, 2014). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Lewis Patterson (May 5, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Ivan Fomichev (October 18 , 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ GUYTU6J (May 22, 2021). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
- ↑ MathAndCode (July 28, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
External links
- Monogram at the Life Lexicon
- 18P4.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 40
- Natural periodic objects
- Oscillators with 18 cells
- Periodic objects with minimum population 18
- Patterns with 18 cells
- Patterns found by Dean Hickerson
- Patterns found in 1989
- Patterns that can be constructed with 7 gliders
- Oscillators
- Oscillators with period 4
- Oscillators with mod 2
- Oscillators with heat 14
- Oscillators with volatility 0.88
- Oscillators with strict volatility 0.88
- Patterns with rectangular orthogonal symmetry
- Flipping oscillators
- Sparkers
- Sparkers with period 4
- Weak sparkers