Difference between revisions of "Lightweight spaceship"

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{{Spaceship|name=Lightweight Spaceship|bx=5|by=5|h=11|pname=lwss|dir=Orthogonal|p=4|s=c/2|c=9|discoverer=John Conway||discoveryear=1970|life105=true|life106=true|plaintext=true|rle=true|animated=true|synthesis=3|synthesisRLE=true|rulespecial=[[Conway's Game of Life|Conway Life]], [[HighLife]]|rulemin=B3/S23|rulemax=B3468/S2378}}
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{{Spaceship
The '''lightweight spaceship''' (or '''LWSS''' for short or '''small fish'''<ref>{{cite web|url=http://www.argentum.freeserve.co.uk/lex_s.htm#smallfish |title=Small fish |work=The Life Lexicon |publisher=Stephen Silver |accessdate=June 10, 2009}}</ref>) is the smallest orthogonally moving [[spaceship]], and the second most common spaceship (after the [[glider]]). Random soups will emit one LWSS for approximately every 615 gliders.<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 moves orthogonally at [[c/2 orthogonal|c/2]] and has [[period]] [[:Category:Spaceships with period 4|4]]. It was found by [[John Conway]] in [[:Category:Patterns found in 1970|1970]].
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|name             = Lightweight spaceship
 +
|pname            = lwss
 +
|family          = XWSS
 +
|c                = 9
 +
|bx               = 5
 +
|by               = 4
 +
|fc              = 11.2
 +
|dir             = Orthogonal
 +
|p               = 4
 +
|m                = 2
 +
|s               = c/2
 +
|z                = 2c/4
 +
|h                = 11
 +
|discoverer       = John Conway
 +
|discoveryear     = 1970
 +
|rulemin          = B3/S23
 +
|rulemax          = B3468/S2378
 +
|rulespecial     = [[Conway's Game of Life|Conway Life]], [[HighLife]]
 +
|isorulemin      = B3aij/S2eik3aijnr
 +
|isorulemax      = B2kn345-a67e8/S1e234-aw5-jy6-kn78
 +
|synthesis        = 3
 +
|synthesisRLE    = true
 +
|plaintext        = true
 +
|rle              = true
 +
|animated        = true
 +
|viewerconfig    = #C [[ TRACKLOOP 4 -1/2 0 THUMBSIZE 2 GPS 4 ]]
 +
|apgcode          = xq4_6frc
 +
|pentadecathlonid = 9P4H2V0.1
 +
|eppsteinid      = 1062
 +
}}
 +
The '''lightweight spaceship''' (commonly abbreviated to '''LWSS''') or (rarely) '''small fish'''<ref>{{CiteLexicon|file=lex_s.htm#smallfish|name=Small fish|accessdate=June 10, 2009}}</ref> is the smallest orthogonal [[spaceship]], and the second most common spaceship after the [[glider]]. It moves at speed [[c/2 orthogonal|c/2]] and has [[period]] {{periodS|4|brief}} (and is therefore often referred to as 2c/4). It was found by [[John Conway]] in {{year|1970}}.
 +
 
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==[[List of common spaceships|Commonness]]==
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Random soups investigated by Achim Flammenkamp emitted one LWSS for approximately every 615 gliders.<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> The LWSS is also the eighteenth most common object on [[Adam P. Goucher]]'s [[Catagolue]].<ref>{{citeCatagolueStats|June 24, 2016}}</ref>
  
 
==Tagalong==
 
==Tagalong==
In April [[:Category:Patterns found in 1992|1992]], [[David Bell]] found a [[tagalong]] for two lightweight spaceships (or two [[middleweight spaceship]]s or two [[heavyweight spaceship]]s). It can be extended indefinitely by attaching it to the back of itself.
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In April {{year|1992}}, [[David Bell]] found a [[tagalong]] for two lightweight spaceships (or two [[middleweight spaceship]]s or two [[heavyweight spaceship]]s). It can be extended indefinitely by attaching it to the back of itself. Interestingly, a [[hivenudger]] with symmetric rear (that is, both rear spaceships being of same "weight") can pull this tagalong.
Interestingly, a [[hivenudger]] with symmetric rear (that is, both rear spaceships being of same "weight") can pull this tagalong.
 
  
[[Image:LWSS_tagalong.png|framed|center|Tagalong for two lightweight spaceships<br />{{JavaRLE|lwsstagalong}}]]
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[[Image:LWSS_tagalong.png|framed|center|Tagalong for two lightweight spaceships<br />{{JavaRLE|lwsstagalong}}<br />{{LinkCatagolue|xq4_8oxvvmxmvvxo8z03b0baksxskab0b3zw224rq8ccc8qr422zy369896zy0uhg9x9ghu|style=brief}}]]
  
 
==See also==
 
==See also==
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*[[Fake xWSS]]
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*[[Middleweight spaceship]]
 
*[[Heavyweight spaceship]]
 
*[[Heavyweight spaceship]]
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*[[LWSS on MWSS 1]]
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*[[LWSS on HWSS 1]]
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*[[Lightweight emulator]]
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*[[Toaster]]
 
*[[Infinite LWSS hotel]]
 
*[[Infinite LWSS hotel]]
*[[Middleweight spaceship]]
 
  
 
==References==
 
==References==
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==External links==
 
==External links==
 
{{LinkWeisstein|LightweightSpaceship.html}}
 
{{LinkWeisstein|LightweightSpaceship.html}}
{{LinkLexicon|lex_l.htm#lwss}}
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{{LinkLexicon|lex_l.htm#lwss|name=LWSS}}
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{{LinkEppstein|1062|patternname=The Lightweight Spaceship (glider 1062)}}
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{{LinkCatagolue|xq4_6frc}}
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{{LinkCatagolue|xq4_6frcxcrf6|patternname=LWSS on LWSS|format=pseudo-object}}
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{{LinkNiemiec|ss.htm#ss-9|patternname=The 1 nine-bit spaceship}}
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{{LinkPentadecathlonObject|9P4H2V0.1}}
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[[Category:Glide symmetric spaceships]]
 
[[Category:Glide symmetric spaceships]]

Latest revision as of 15:43, 10 January 2020

Lightweight spaceship
bo2bo$o$o3bo$4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 4 -1/2 0 THUMBSIZE 2 GPS 4 ]]
Pattern type Spaceship
Family XWSS
Number of cells 9
Bounding box 5×4
Frequency class 11.2
Direction Orthogonal
Period 4
Mod 2
Speed c/2
Speed (unsimplified) 2c/4
Heat 11
Discovered by John Conway
Year of discovery 1970

The lightweight spaceship (commonly abbreviated to LWSS) or (rarely) small fish[1] is the smallest orthogonal spaceship, and the second most common spaceship after the glider. It moves at speed c/2 and has period 4 (and is therefore often referred to as 2c/4). It was found by John Conway in 1970.

Commonness

Random soups investigated by Achim Flammenkamp emitted one LWSS for approximately every 615 gliders.[2] The LWSS is also the eighteenth most common object on Adam P. Goucher's Catagolue.[3]

Tagalong

In April 1992, David Bell found a tagalong for two lightweight spaceships (or two middleweight spaceships or two heavyweight spaceships). It can be extended indefinitely by attaching it to the back of itself. Interestingly, a hivenudger with symmetric rear (that is, both rear spaceships being of same "weight") can pull this tagalong.

Tagalong for two lightweight spaceships
Download RLE: click here
Catagoluehere

See also

References

  1. "Small fish". The Life Lexicon. Stephen Silver. Retrieved on June 10, 2009.
  2. "Spontaneous appeared Spaceships out of Random Dust". Achim Flammenkamp (December 9, 1995). Retrieved on August 18, 2011.
  3. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.

External links

  • 9P4H2V0.1 at Heinrich Koenig's Game of Life Object Catalogs