Difference between revisions of "Weekender"

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m (Added symmetry)
m (Pentadecathlon ID)
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{{Spaceship
{{Spaceship
|name         = Weekender
|name             = Weekender
|pname       = weekender
|pname           = weekender
|c           = 36
|c               = 36
|bx           = 18
|bx               = 18
|by           = 12
|by               = 12
|dir         = Orthogonal
|dir             = Orthogonal
|p           = 7
|p               = 7
|m           = 7
|m               = 7
|s           = 2c/7
|s               = 2c/7
|h           = 45.1
|h               = 45.1
|discoverer   = David Eppstein
|discoverer       = David Eppstein
|discoveryear = 2000
|discoveryear     = 2000
|synthesis   = 79
|synthesis       = 79
|synthesisRLE = true
|synthesisRLE     = true
|life105     = true
|life105         = true
|life106     = true
|life106         = true
|plaintext   = true
|plaintext       = true
|rle         = true
|rle             = true
|animated     = true
|animated         = true
|viewerconfig = #C [[ GPS 7 TRACKLOOP 7 0 -2/7 THUMBSIZE 2 ]]
|viewerconfig     = #C [[ GPS 7 TRACKLOOP 7 0 -2/7 THUMBSIZE 2 ]]
|apgcode     = xq7_7dfxg88gxfd7zw123u2222u321
|apgcode         = xq7_7dfxg88gxfd7zw123u2222u321
|eppsteinid   = 14105
|pentadecathlonid = 36P7H2V0.1
|eppsteinid       = 14105
}}
}}
'''Weekender''' is a [[2c/7 orthogonal]] [[spaceship]] that was found by [[:Category:Patterns found by David Eppstein|David Eppstein]] on January 12, [[:Category:Patterns found in 2000|2000]].<ref>{{CiteSummersPattern|name=jslife}}</ref> On April 27, 2000, [[:Category:Patterns found by Stephen Silver|Stephen Silver]] found a [[tagalong]] for a pair of weekenders (shown below). At present, n weekenders pulling n-1 tagalongs constitute the only known spaceships with [[speed]] 2c/7, besides self-sustaining loops of [[2c/7 orthogonal#Rakes|weekender conduits]]. These were the only known [[:Category:Spaceships_with_period_7|period-7]] spaceships until the discovery of [[lobster (spaceship)|Lobster]] in [[:Category:patterns found in 2011|2011]], [[loafer]] in [[:Category:patterns found in 2013|2013]] and [[spaghetti monster]] in 2016.
'''Weekender''' is a [[2c/7 orthogonal]] [[spaceship]] that was found by [[:Category:Patterns found by David Eppstein|David Eppstein]] on January 12, [[:Category:Patterns found in 2000|2000]].<ref>{{CiteSummersPattern|name=jslife}}</ref> On April 27, 2000, [[:Category:Patterns found by Stephen Silver|Stephen Silver]] found a [[tagalong]] for a pair of weekenders (shown below). At present, n weekenders pulling n-1 tagalongs constitute the only known spaceships with [[speed]] 2c/7, besides self-sustaining loops of [[2c/7 orthogonal#Rakes|weekender conduits]]. These were the only known [[:Category:Spaceships_with_period_7|period-7]] spaceships until the discovery of [[lobster (spaceship)|Lobster]] in [[:Category:patterns found in 2011|2011]], [[loafer]] in [[:Category:patterns found in 2013|2013]] and [[spaghetti monster]] in 2016.
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{{LinkEppstein|14105|patternname=The Weekender (glider 14105)}}
{{LinkEppstein|14105|patternname=The Weekender (glider 14105)}}
{{LinkCatagolue|xq7_7dfxg88gxfd7zw123u2222u321}}
{{LinkCatagolue|xq7_7dfxg88gxfd7zw123u2222u321}}
{{LinkPentadecathlonObject|36P7H2V0.1}}


[[Category:Non-monotonic spaceships]]
[[Category:Non-monotonic spaceships]]
{{Symmetry|orthogonal2}}
{{Symmetry|orthogonal2}}

Revision as of 19:08, 3 November 2018

Weekender
#N Weekender #O David Eppstein #C An orthogonal period 7 spaceship with speed 2c/7. #C www.conwaylife.com/wiki/Weekender x = 16, y = 11, rule = B3/S23 bo12bo$bo12bo$obo10bobo$bo12bo$bo12bo$2bo3b4o3bo$6b4o$2b4o4b4o2$4bo6bo $5b2o2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 7 TRACKLOOP 7 0 -2/7 THUMBSIZE 2 ]]
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View static image
Pattern type Spaceship
Number of cells 36
Bounding box 18 × 12
Direction Orthogonal
Period 7
Mod 7
Speed 2c/7 | Unknown
Heat 45.1
Discovered by David Eppstein
Year of discovery 2000

Weekender is a 2c/7 orthogonal spaceship that was found by David Eppstein on January 12, 2000.[1] On April 27, 2000, Stephen Silver found a tagalong for a pair of weekenders (shown below). At present, n weekenders pulling n-1 tagalongs constitute the only known spaceships with speed 2c/7, besides self-sustaining loops of weekender conduits. These were the only known period-7 spaceships until the discovery of Lobster in 2011, loafer in 2013 and spaghetti monster in 2016.

Despite the relative simplicity of its components, a glider synthesis for the weekender had been elusive since its discovery. A weekender synthesis was completed on January 25, 2015, 15 years after its discovery (and coincidentally, on a weekend).[2]

On September 26, 2015 Chris Cain announced a p444 weekender gun based on a 79-glider synthesis, as well as a p451/p457+ glider-to-weekender converter.[3]

Image gallery

Two weekenders followed by a tagalong
RLE: here

See also

References

  1. ↑ Jason Summers' jslife pattern collection.
  2. ↑ Martin Grant (January 25, 2015). "Re: Small Spaceship Syntheses". Retrieved on January 25, 2015.
  3. ↑ Chris Cain (September 26, 2015). "Re: Small Spaceship Syntheses". Retrieved on October 7, 2015.

External links

Template:LinkWeisstein

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