Difference between revisions of "Middleweight spaceship"

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(This is a period 4 spaceship, not 5.)
(→‎Commonness: a collision with two escaping middleweight spaceships)
 
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{{Spaceship
{{Spaceship
|name         = Middleweight Spaceship
|name             = Middleweight spaceship
|pname       = mwss
|pname           = mwss
|c           = 11
|family          = XWSS
|bx           = 6
|c               = 11
|by           = 4
|bx               = 6
|dir         = Orthogonal
|by               = 4
|p           = 4
|fc              = 13.2
|s           = c/2
|dir             = Orthogonal
|h           = 15
|p               = 4
|discoverer   = John Conway
|m                = 2
|discoveryear = 1970
|s               = c/2
|rulemin     = B3/S23
|z                = 2c/4
|rulemax     = B3468/S238
|h               = 15
|rulespecial = [[Conway's Game of Life|Conway Life]]
|discoverer       = John Conway
|synthesis    = 3
|discoveryear     = 1970
|synthesisRLE = true
|rulemin         = B3/S23
|life105      = true
|rulemax         = B3468/S238
|life106      = true
|rulespecial     = [[Conway's Game of Life|Conway Life]], [[HighLife]]
|plaintext   = true
|isorulemin      = B3aij/S2eik3aijnr
|rle         = true
|isorulemax      = B2n345-a67e8/S1e234-aw5-ijy6-k7e8
|animated     = true
|synthesis        = 3
|viewerconfig = #C [[ ZOOM 32 TRACK 4 1 0 THUMBSIZE 3 GPS 4 HEIGHT 200 WIDTH 200 ]]
|synthesisRLE    = true
|plaintext       = true
|rle             = true
|animated         = true
|viewerconfig     = #C [[ Y 1.5 TRACKLOOP 4 -1/2 0 THUMBSIZE 2 GPS 4 ]]
|apgcode          = xq4_27dee6
|pentadecathlonid = 11P4H2V0.1
}}
}}
The '''middleweight spaceship''' (or '''MWSS''' for short, or '''medium fish''') is the third most common [[spaceship]] (after the [[glider]] and [[lightweight spaceship]]). It was found by [[:Category:Patterns found by John Conway|John Conway]] in [[:Category:Patterns found in 1970|1970]] and travels at [[c/2 orthogonal|c/2]] orthogonally. It can support various non-[[Types of spaceships#Standard spaceship|standard]] components, such as [[pushalong 1]].
The '''middleweight spaceship''' (commonly abbreviated to '''MWSS''') or (rarely) '''medium fish''' is the third most common [[spaceship]] after the [[glider]] and [[lightweight spaceship]]. It was found by [[John Conway]] in {{year|1970}} and travels at [[c/2 orthogonal]]ly. It can support various non-[[Types of spaceships#Standard spaceship|standard]] components, such as [[pushalong 1]].


==Commonness==
== Construction ==
The MWSS occured about one fourth as commonly as the LWSS in soups investigated by [[Achim Flammenkamp]].<ref>{{cite web|url=http://wwwhomes.uni-bielefeld.de/achim/moving.html |title=Spontaneous appeared Spaceships out of Random Dust |publisher=Achim Flammenkamp |date=December 9, 1995|accessdate=August 18, 2011}}</ref> It is also the twenty-third most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref>
A three-sided, one-step {{gliders|3}} [[Glider synthesis|synthesis]] was recorded on [[Lifeline Volume 3]], involving a glider hitting a [[pre-pre-block]] freshly made from a [[2-glider collision]].<ref>{{CiteLifeline|vol=3|pages=page 6}}</ref>


==See also==
A number of different ways to construct a MWSS can be found in [[Mark Niemiec's database|Mark Niemiec's glider synthesis database]].<ref name="niemiec" />
*[[Lightweight spaceship]]
 
*[[Heavyweight spaceship]]
There is a three-object [[one-glider seed]] for the middleweight spaceship,<ref name="post8849" /> shown below; the constellation of three blocks itself can be constructed with four gliders,<ref>{{LinkCatagolue|xs12_33z66y0cc|style=nobullet}}</ref> thus providing a {{gliders|5}} synthesis for the MWSS.
*[[Coe ship]]
There are also 14 matches for the middleweight spaceship in the [[octo3obj database]].<ref name="post152474" />
 
{|style="margin:auto;width:360px;"
|{{EmbedViewer
|rle          = x = 14, y = 9, rule = B3/S23
obo$b2o$bo3$4bo$4b2o5b3o$3bobo5bo$12bo!
|viewerconfig = #C [[ THEME Book AUTOSTART GPS 8 ZOOM 14 T 0 PAUSE 1 T 31 PAUSE 1 LOOP 32 ]]
|position    = center
|caption      = [[Three-glider collision|3G synthesis]] for the MWSS
}}
|-
|{{EmbedViewer
|rle          = x = 9, y = 9, rule = B3/S23
bo5b2o$2bo4b2o$3o4$7b2o$b2o4b2o$b2o!
|viewerconfig = #C [[ THEME Book AUTOSTART GPS 8 ZOOM 14 T 0 PAUSE 1 T 47 PAUSE 1 LOOP 48 ]]
|position    = center
|caption      = A 3-block 1G seed for the MWSS<ref name="post8849" />
}}
|}
 
== Occurrence ==
{{related|List of common spaceships}}
The MWSS occurred about one fourth as commonly as the LWSS in soups investigated by [[Achim Flammenkamp]].<ref>{{cite web|url=http://wwwhomes.uni-bielefeld.de/achim/moving.html |title=Spontaneous appeared Spaceships out of Random Dust |publisher=Achim Flammenkamp |date=December 9, 1995|accessdate=August 18, 2011}}</ref> It is also the twenty-third most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref>
 
There are 167 results in the [[octohash database]], 1798 results in the octo3obj database,{{refn|There is a collision with two escaping middleweight spaceships. The headerless RLE is {{headerlessRLE|8b2o$8b2o5$9b2o$5b2o2b2o$5b2o$3o$5bo$4b2o$4bobo!}}}} and 182 results in the octo3g database with at least one escaping MWSS.
 
== See also ==
* [[Lightweight spaceship]], [[Heavyweight spaceship]]
* [[LWSS on MWSS 1]], [[MWSS on MWSS 1]], [[MWSS on HWSS 1]]
* [[Coe ship]]
* [[Middleweight emulator]]
* [[Middleweight volcano]]
* [[Fake xWSS]]


== References ==
== References ==
<references />
<references>
<ref name="post8849">{{LinkForumThread
|format    = ref
|p          = 8849
|title      = Re: Blockic Seeds
|author    = codeholic
|date      = August 25, 2013
}}</ref>
<ref name="niemiec">{{LinkNiemiec|ss.htm#ss-11|The 1 eleven-bit spaceship|rle=ss/11mw.rle|nobullet=nobullet}}</ref>
<ref name="post152474">{{LinkForumThread
|format  = ref
|p        = 152474
|title    = Re: Octohash fingerprints
|author  = Dave Greene
|date    = October 21, 2022
}}</ref>
</references>


==External links==
== External links ==
{{LinkWeisstein|MiddleweightSpaceship.html}}
* {{LinkLexicon|lex_m.htm#mwss|name=MWSS}}
{{LinkLexicon|lex_l.htm#lwss}}
* {{LinkCatagolue|xq4_27dee6}}
{{LinkCatagolue|xq4_27dee6}}
* {{LinkPentadecathlonObject|11P4H2V0.1}}
{{LinkNiemiec|ss.htm#ss-11|patternname=The 1 eleven-bit spaceship}}
{{LinkPentadecathlonObject|11P4H2V0.1}}


[[Category:Polyominoes]]
[[Category:Glide symmetric spaceships]]
[[Category:Glide symmetric spaceships]]
__NOTOC__

Latest revision as of 12:21, 10 November 2022

Middleweight spaceship
3bo$bo3bo$o$o4bo$5o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ Y 1.5 TRACKLOOP 4 -1/2 0 THUMBSIZE 2 GPS 4 ]]
View animated image
View static image
Pattern type Spaceship
Family XWSS
Number of cells 11
Bounding box 6 × 4
Frequency class 13.2
Direction Orthogonal
Period 4
Mod 2
Speed c/2 | 2c/4
Heat 15
Discovered by John Conway
Year of discovery 1970

The middleweight spaceship (commonly abbreviated to MWSS) or (rarely) medium fish is the third most common spaceship after the glider and lightweight spaceship. It was found by John Conway in 1970 and travels at c/2 orthogonally. It can support various non-standard components, such as pushalong 1.

Construction

A three-sided, one-step 3-glider synthesis was recorded on Lifeline Volume 3, involving a glider hitting a pre-pre-block freshly made from a 2-glider collision.[1]

A number of different ways to construct a MWSS can be found in Mark Niemiec's glider synthesis database.[2]

There is a three-object one-glider seed for the middleweight spaceship,[3] shown below; the constellation of three blocks itself can be constructed with four gliders,[4] thus providing a 5-glider synthesis for the MWSS. There are also 14 matches for the middleweight spaceship in the octo3obj database.[5]

x = 14, y = 9, rule = B3/S23 obo$b2o$bo3$4bo$4b2o5b3o$3bobo5bo$12bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book AUTOSTART GPS 8 ZOOM 14 T 0 PAUSE 1 T 31 PAUSE 1 LOOP 32 ]]
3G synthesis for the MWSS
(click above to open LifeViewer)
x = 9, y = 9, rule = B3/S23 bo5b2o$2bo4b2o$3o4$7b2o$b2o4b2o$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book AUTOSTART GPS 8 ZOOM 14 T 0 PAUSE 1 T 47 PAUSE 1 LOOP 48 ]]
A 3-block 1G seed for the MWSS[3]
(click above to open LifeViewer)

Occurrence

See also: List of common spaceships

The MWSS occurred about one fourth as commonly as the LWSS in soups investigated by Achim Flammenkamp.[6] It is also the twenty-third most common object on Adam P. Goucher's Catagolue.[7]

There are 167 results in the octohash database, 1798 results in the octo3obj database,[8] and 182 results in the octo3g database with at least one escaping MWSS.

See also

References

  1. ↑ Robert Wainwright (September 1971). Lifeline, vol 3, page 6.
  2. ↑ The 1 eleven-bit spaceship at Mark D. Niemiec's Life Page (download pattern file: ss/11mw.rle)
  3. ↑ 3.0 3.1 codeholic (August 25, 2013). Re: Blockic Seeds (discussion thread) at the ConwayLife.com forums
  4. ↑ xs12_33z66y0cc at Adam P. Goucher's Catagolue
  5. ↑ Dave Greene (October 21, 2022). Re: Octohash fingerprints (discussion thread) at the ConwayLife.com forums
  6. ↑ "Spontaneous appeared Spaceships out of Random Dust". Achim Flammenkamp (December 9, 1995). Retrieved on August 18, 2011.
  7. ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
  8. ↑ There is a collision with two escaping middleweight spaceships. The headerless RLE is 8b2o$8b2o5$9b2o$5b2o2b2o$5b2o$3o$5bo$4b2o$4bobo!

External links

Retrieved from "https://conwaylife.com/w/index.php?title=Middleweight_spaceship&oldid=117909"