Difference between revisions of "Lightweight spaceship"

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{{Spaceship
{{Spaceship
|name         = Lightweight Spaceship
|name             = Lightweight spaceship
|pname       = lwss
|pname           = lwss
|c           = 9
|family          = XWSS
|bx           = 5
|c               = 9
|by           = 4
|bx               = 5
|dir         = Orthogonal
|by               = 4
|p           = 4
|fc              = 11.2
|s           = c/2
|dir             = Orthogonal
|h           = 11
|p               = 4
|discoverer   = John Conway
|m                = 2
|discoveryear = 1970
|s               = c/2
|rulemin     = B3/S23
|z                = 2c/4
|rulemax     = B3468/S2378
|h               = 11
|rulespecial = [[Conway's Game of Life|Conway Life]], [[HighLife]]
|discoverer       = John Conway
|synthesis    = 3
|discoveryear     = 1970
|synthesisRLE = true
|rulemin         = B3/S23
|life105      = true
|rulemax         = B3468/S2378
|life106      = true
|rulespecial     = [[Conway's Game of Life|Conway Life]], [[HighLife]]
|plaintext   = true
|isorulemin      = B3aij/S2eik3aijnr
|rle         = true
|isorulemax      = B2kn345-a67e8/S1e234-aw5-jy6-kn78
|animated     = true
|synthesis        = 3
|viewerconfig = #C [[ ZOOM 32 TRACK 4 2 0 THUMBSIZE 3 GPS 4 HEIGHT 200 WIDTH 200 ]]
|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''' (or '''LWSS''' for short or '''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]] [[:Category:Spaceships with period 4|4]]. It was found by [[John Conway]] in [[:Category:Patterns found in 1970|1970]].
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]] [[:Category:Spaceships with period 4|4]] (and is therefore often referred to as 2c/4). It was found by [[John Conway]] in [[:Category:Patterns found in 1970|1970]].


==Commonness==
==[[List of common spaceships|Commonness]]==
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>
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>


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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. Interestingly, a [[hivenudger]] with symmetric rear (that is, both rear spaceships being of same "weight") can pull this 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. 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}}]]
[[Image:LWSS_tagalong.png|framed|center|Tagalong for two lightweight spaceships<br />{{JavaRLE|lwsstagalong}}<br />{{LinkCatagolue|xq4_8oxvvmxmvvxo8z03b0baksxskab0b3zw224rq8ccc8qr422zy369896zy0uhg9x9ghu|style=brief}}]]


==See also==
==See also==
*[[Fake xWSS]]
*[[Middleweight spaceship]]
*[[Heavyweight spaceship]]
*[[Heavyweight spaceship]]
*[[Lightweight emulator]]
*[[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}}
{{LinkLexicon|lex_l.htm#lwss|name=LWSS}}
{{LinkEppstein|1062|patternname=The Lightweight Spaceship (glider 1062)}}
{{LinkEppstein|1062|patternname=The Lightweight Spaceship (glider 1062)}}
{{LinkCatagolue|xq4_6frc}}
{{LinkCatagolue|xq4_6frc}}

Revision as of 21:38, 17 July 2019

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 ]]
View animated image
View static image
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 | 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
Catagolue: here

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

Template:LinkWeisstein

Retrieved from "https://conwaylife.com/w/index.php?title=Lightweight_spaceship&oldid=62954"