Monogram: Difference between revisions
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'''Monogram''' (or '''initials'''<ref>{{CiteLexicon|file=lex_i.htm#initials|name=Initials|accessdate=June 13, 2009}}</ref> or '''JHC'''<ref>{{CiteLexicon|file=lex_j.htm#jhc|name=JHC|accessdate=April 30, 2009}}</ref>) is a {{period|4}} [[oscillator]] that was found by [[Dean Hickerson]] in August {{year|1989}}. It produces some weak sparks which can utilized in e.g. the stabilization of the [[carnival shuttle]]. | '''Monogram''' (or '''initials'''<ref>{{CiteLexicon|file=lex_i.htm#initials|name=Initials|accessdate=June 13, 2009}}</ref> or '''JHC'''<ref>{{CiteLexicon|file=lex_j.htm#jhc|name=JHC|accessdate=April 30, 2009}}</ref>) is a {{period|4}} [[oscillator]] that was found by [[Dean Hickerson]] in August {{year|1989}}. It produces some weak sparks which can utilized in e.g. the stabilization of the [[carnival shuttle]]. | ||
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" /> | |||
==References== | ==References== | ||
<references /> | <references> | ||
<ref name="post13516">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Soup search results | |||
|p = 13516 | |||
|author = Josh Ball | |||
|date = September 28, 2014 | |||
}}</ref> | |||
<ref name="post19372">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Soup search results | |||
|p = 19372 | |||
|author = Lewis Patterson | |||
|date = May 5, 2015 | |||
}}</ref> | |||
</references> | |||
==External links== | ==External links== | ||
Revision as of 16:41, 7 March 2020
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| Pattern type | Oscillator | ||||||||
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| 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 in August 1989. It produces some weak sparks which can 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.[3] It later appeared in an asymmetric soup on May 5, 2015.[4]
References
- ↑ "Initials". The Life Lexicon. Stephen Silver. Retrieved on June 13, 2009.
- ↑ "JHC". The Life Lexicon. Stephen Silver. Retrieved on April 30, 2009.
- ↑ 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
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 10 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