Difference between revisions of "Jam"

	Jam
	<a href="/wiki/File:Jam.png" class="image" title="Jam image"><img alt="Jam image" src="/w/images/f/fa/Jam.png" decoding="async" width="130" height="146" /></a>
	<a href="/wiki/File:Jam.png" class="image" title="Jam image"><img alt="Jam image" src="/w/images/f/fa/Jam.png" decoding="async" width="130" height="146" /></a>
	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
Rules
Outer-totalistic rules	B3/S23 – B378/S0235678
# of rules	27 = 128
Isotropic rules	B3aijnq/S23acqr – B2ci34-ajnz5-ck6-a78/S0234ceqtwyz5678
Glider synthesis
Fewest gliders	5
Catagolue-generated RLE	synthesis
Uploaded synthesis RLE	jam_synth.rle
Pattern files
Plaintext	jam.cells
RLE	jam.rle
Identifiers
apgcode	xp3_695qc8zx33
Pentadecathlon ID	13P3.1

Latest revision as of 21:11, 13 August 2024

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

References

↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
↑ 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.
↑ Carson Cheng (July 4, 2022). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

External links

Jam at the Life Lexicon
Jam at Adam P. Goucher's Catagolue
13P3.1 at Heinrich Koenig's Game of Life Object Catalogs

[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.

[post147876-4] Carson Cheng (July 4, 2022). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

[1]

[2]

[3]

[4]

@@ Line 1: / Line 1: @@
-{{Oscillator|p=3|c=13|name=Jam|pname=jam|h=14.3|v=0.55|bx=7|by=7|discoveryear=1988|discoverer=Achim Flammenkamp|life105=true|life106=true|plaintext=true|rle=true|animated=true|synthesis=7|synthesisRLE=true|v=0.55}}
+{{Oscillator
-'''Jam''' was found by [[:Category:Patterns found by Achim Flammenkamp|Achim Flammenkamp]] in [[:Category:Patterns found in 1988|1988]], but not widely known about until its independent discovery (and naming) by [[:Category:Patterns found by Dean Hickerson|Dean Hickerson]] in September [[:Category:Patterns found in 1989|1989]]. In terms of its 7×7 [[bounding box]] it ties with [[trice tongs]] as the smallest [[period]] [[:Category:Oscillators with period 3|3]] [[oscillator]], though [[caterer]] has fewer [[cell]]s. It is also about the seventeenth most [[common]] naturally-occurring oscillator, being slightly less common than the [[blocker]].<ref>{{CiteAchim|accessdate=January 15, 2009}}</ref>
+|name             = Jam
+|pname            = jam
+|c                = 13
+|bx               = 7
+|by               = 7
+|fc               = 27.6
+|p                = 3
+|m                = 3
+|h                = 7.3
+|v                = 0.55
+|symmetry         = n
+|discoverer       = Achim Flammenkamp
+|discoveryear     = 1988
+|rulemin          = B3/S23
+|rulemax          = B378/S0235678
+|isorulemin       = B3aijnq/S23acqr
+|isorulemax       = B2ci34-ajnz5-ck6-a78/S0234ceqtwyz5678
+|synthesis        = 5
+|synthesisRLE     = true
+|plaintext        = true
+|rle              = true
+|apgcode          = xp3_695qc8zx33
+|pentadecathlonid = 13P3.1
+|animated         = true
+|viewerconfig     = #C [[ THUMBSIZE 2 GPS 2 ]]
+}}
+'''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]].
-==See also==
+== Commonness ==
-*[[Crown]]
+{{main|List of common oscillators}}
-*[[Jam on 34P13.1]]
+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>
-*[[Jam on 44P7.2]]
-*[[List of common oscillators]]
-*[[Mold]]
-==References==
+== Glider synthesis ==
-<references />
+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.
-==External links==
+== Loaf substitutes ==
-{{LinkWeisstein|filename=Jam.html}}
+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.
-{{LinkLexicon|lex_j.htm#jam}}
+{{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]]
+}}
-[[Category:Asymmetric patterns]]
+== 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
+b2o$2bo2bo$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
+b2o$2bo2bo$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 ==
+* [[Crown]]
+* [[Jam on Beluchenko's p13]]
+* [[Jam on 44P7.2]]
+* [[Mold]]
+== 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 ==
+* {{LinkLexicon|lex_j.htm#jam}}
+* {{LinkCatagolue|xp3_695qc8zx33}}
+* {{LinkPentadecathlonObject|13P3.1}}
+{{Sparker|p=3|type=dot|strength=weak}}
+__NOTOC__