Jam: Difference between revisions

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|h                = 7.3
|h                = 7.3
|v                = 0.55
|v                = 0.55
|symmetry        = n
|discoverer      = Achim Flammenkamp
|discoverer      = Achim Flammenkamp
|discoveryear    = 1988
|discoveryear    = 1988
|rulemin          = B3/S23
|rulemin          = B3/S23
|rulemax          = B378/S0235678
|rulemax          = B378/S0235678
|rulespecial      = [[Conway's Game of Life|Conway Life]]
|isorulemin      = B3aijnq/S23acqr
|isorulemin      = B3aijnq/S23acqr
|isorulemax      = B2ci34-ajnz5-ck6-a78/S0234ceqtwyz5678
|isorulemax      = B2ci34-ajnz5-ck6-a78/S0234ceqtwyz5678
|synthesis        = 6
|synthesis        = 5
|synthesisRLE    = true
|synthesisRLE    = true
|plaintext        = true
|plaintext        = true
Line 26: Line 26:
|viewerconfig    = #C [[ THUMBSIZE 2 GPS 2 ]]
|viewerconfig    = #C [[ THUMBSIZE 2 GPS 2 ]]
}}
}}
'''Jam''' was found by [[Achim Flammenkamp]] in {{year|1988}},<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> but not widely known about until its independent discovery (and naming) by [[Dean Hickerson]] in September {{year|1989}}. In terms of its 7×7 [[bounding box]] it ties with [[trice tongs]] as the smallest {{period|3}} [[oscillator]], though [[caterer]] has fewer [[cell]]s.
'''Jam''' is a {{period|3}} [[oscillator]] that was found by [[Achim Flammenkamp]] in {{year|1988}}<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> but not widely known about until its independent discovery (and naming) by [[Dean Hickerson]] in September {{year|1989}}. In terms of its {{times|7|7}} [[bounding box]] it ties with [[trice tongs]] as the smallest period-3 oscillator, though [[caterer]] has a smaller minimum [[population]].


== [[List of common oscillators|Commonness]] ==
== Commonness ==
Jam is about the seventeenth most [[common]] naturally-occurring oscillator in [[Achim Flammenkamp's census]], being slightly less common than the [[blocker]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> On [[Catagolue]], it is the second most common period 3 oscillator, being less common than the [[pulsar]] but more common than the [[candlefrobra on trans-block]].<ref>{{citeCatagolue|page=census/b3s23/C1|title=Census|accessdate=October 27, 2018}}</ref>
{{main|List of common oscillators}}
Jam is about the seventeenth most [[common]] naturally-occurring oscillator in [[Achim Flammenkamp's census]], being slightly less common than the [[blocker]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> On [[Catagolue]], it is the second most common period 3 oscillator, being less common than the [[pulsar]] but more common than the [[trans-block on candlefrobra]].<ref>{{citeCatagolue|page=census/b3s23/C1|title=Census|accessdate=October 27, 2018}}</ref>


== [[Glider synthesis]] ==
== Glider synthesis ==
{{Small constructible periodic object}}
A {{gliders|5}} [[Glider synthesis|synthesis]] of jam was found on July 8, {{year|2022}},<ref name="post147876" /> and can be found in the infobox to the right.
 
== Loaf substitutes ==
To support the rotor, an object needs only to have three live cells in a diagonal line in one phase. One of the outer of these is only necessary to suppress a birth in one phase, and can be dead in the other two. As such, other objects and oscillators can support it.
{{EmbedViewer
|rle          = x = 29, y = 27, rule = B3/S23
$5b2o15b2o$bo4bo11bo4bo$obo3bob2o7bobo3bob2o$bob2obob2o5bo2bob2obob2o$5bo9bo6bo$15bo$18bo$16b2o2$4bo2bo13bo2bo$bo2bo2bo2bo7bo2bo2bo2bo$ob3o2b3obo5bob3o2b3obo$bo8bo4bo2bo8bo$15bo$15bo$18bo$16b2o3$bo8bo7bo8bo$obo6bobo5bobo6bobo$bob2o2b2obo4bo2bob2o2b2obo$4bo2bo7bo5bo2bo$4bo2bo7bo5bo2bo$18bo$16b2o!
|viewerconfig = #C [[ THUMBSIZE 3 WIDTH 720 HEIGHT 720 ZOOM 18 GPS 2 AUTOSTART ]]
|position    = center
|caption      = Jam on [[candlefrobra]], [[short keys]] and [[bent keys]]
}}
 
== Dependent oscillators ==
There are several unstable objects that may supported by two jams.
{|style="margin:auto;width:300px;"
|{{EmbedViewer
|rle          = x = 6, y = 15, rule = B3/S23
3b2o$2bo2bo$o2bobo$o3bo$o2$b3o$4b2o$b3o2$o$o3bo$o2bobo$2bo2bo$3b2o!
|viewerconfig = #C [[ THUMBSIZE 3 WIDTH 560 HEIGHT 560 ZOOM 30 GPS 2 AUTOSTART ]]
|position    = center
|caption      =
|apgcode      = xp3_69520sz44aaazcik807
}}
|{{EmbedViewer
|rle          = x = 11, y = 11, rule = B3/S23
3b2o$2bo2bo$o2bobo$o3bo$o$8b2o$b3o3bo2bo$3b2o3bobo$4bo4bo$4bo$6b3o!
|viewerconfig = #C [[ THUMBSIZE 3 WIDTH 560 HEIGHT 560 ZOOM 30 GPS 2 AUTOSTART ]]
|position    = center
|caption      = Only a dot spark in one phase
|apgcode      = xp3_8cq596z0330qo8ql96zy31
}}
|}


== See also ==
== See also ==
Line 41: Line 73:


== References ==
== References ==
<references />
<references>
<ref name="post147876">{{LinkForumThread
|format = ref
|title  = Re: Synthesising Oscillators
|p      = 147876
|author = Carson Cheng
|date  = July 4, 2022
}}</ref>
</references>


== External links ==
== External links ==
{{LinkLexicon|lex_j.htm#jam}}
* {{LinkLexicon|lex_j.htm#jam}}
{{LinkCatagolue|xp3_695qc8zx33}}
* {{LinkCatagolue|xp3_695qc8zx33}}
{{LinkPentadecathlonObject|13P3.1}}
* {{LinkPentadecathlonObject|13P3.1}}


{{Sparker|p=3|type=dot|strength=weak}}
{{Sparker|p=3|type=dot|strength=weak}}


__NOTOC__
__NOTOC__

Latest revision as of 21:11, 13 August 2024

Jam
3b2ob$2bo2bo$o2bobo$o3bob$o5b$3bo2b$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 GPS 2 ]]
View animated image
View static image
Pattern type Oscillator
Number of cells 13
Bounding box 7 × 7
Frequency class 27.6
Period 3 (mod: 3)
Heat 7.3
Volatility 0.55 | 0.55
Kinetic symmetry n
Discovered by Achim Flammenkamp
Year of discovery 1988

Jam is a period-3 oscillator that was found by Achim Flammenkamp in 1988[1] but not widely known about until its independent discovery (and naming) by Dean Hickerson in September 1989. In terms of its 7 × 7 bounding box it ties with trice tongs as the smallest period-3 oscillator, though caterer has a smaller minimum population.

Commonness

Main article: List of common oscillators

Jam is about the seventeenth most common naturally-occurring oscillator in Achim Flammenkamp's census, being slightly less common than the blocker.[2] On Catagolue, it is the second most common period 3 oscillator, being less common than the pulsar but more common than the trans-block on candlefrobra.[3]

Glider synthesis

A 5-glider synthesis of jam was found on July 8, 2022,[4] and can be found in the infobox to the right.

Loaf substitutes

To support the rotor, an object needs only to have three live cells in a diagonal line in one phase. One of the outer of these is only necessary to suppress a birth in one phase, and can be dead in the other two. As such, other objects and oscillators can support it.

x = 29, y = 27, rule = B3/S23 $5b2o15b2o$bo4bo11bo4bo$obo3bob2o7bobo3bob2o$bob2obob2o5bo2bob2obob2o$5bo9bo6bo$15bo$18bo$16b2o2$4bo2bo13bo2bo$bo2bo2bo2bo7bo2bo2bo2bo$ob3o2b3obo5bob3o2b3obo$bo8bo4bo2bo8bo$15bo$15bo$18bo$16b2o3$bo8bo7bo8bo$obo6bobo5bobo6bobo$bob2o2b2obo4bo2bob2o2b2obo$4bo2bo7bo5bo2bo$4bo2bo7bo5bo2bo$18bo$16b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 WIDTH 720 HEIGHT 720 ZOOM 18 GPS 2 AUTOSTART ]]
Jam on candlefrobra, short keys and bent keys
(click above to open LifeViewer)

Dependent oscillators

There are several unstable objects that may supported by two jams.

x = 6, y = 15, rule = B3/S23 3b2o$2bo2bo$o2bobo$o3bo$o2$b3o$4b2o$b3o2$o$o3bo$o2bobo$2bo2bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 WIDTH 560 HEIGHT 560 ZOOM 30 GPS 2 AUTOSTART ]]
(click above to open LifeViewer)
Catagolue: here
x = 11, y = 11, rule = B3/S23 3b2o$2bo2bo$o2bobo$o3bo$o$8b2o$b3o3bo2bo$3b2o3bobo$4bo4bo$4bo$6b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 WIDTH 560 HEIGHT 560 ZOOM 30 GPS 2 AUTOSTART ]]
Only a dot spark in one phase
(click above to open LifeViewer)
Catagolue: here

See also

References

  1. ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  3. ↑ Adam P. Goucher. "Census". Catagolue. Retrieved on October 27, 2018.
  4. ↑ Carson Cheng (July 4, 2022). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums


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