Wing

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This article is about the evolutionary sequence. For the extensible c/4 diagonal spaceship, see Wing (spaceship).
"Wing" can additionally refer to a group of switch engines which form half of a Cordership.
Wing
x = 4, y = 4, rule = B3/S23 b2o$o2bo$bobo$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Pattern type Methuselah
Number of cells 8
Bounding box 4 × 4
MCPS 8
Lifespan 104 generations
Final population 9
L/I 13
F/I 1.1
F/L 0.087
L/MCPS 13
Static symmetry Unspecified
Discovered by Unknown
Year of discovery Unknown

Wing is a common evolutionary sequence that stabilizes at generation 104 as a block and a glider. Its most common grandparent is traditionally referred to as block and glider, which is composed of two pre-blocks and has a lifespan of 106 generations. That pattern has a six-cell parent called nine, resembling an eater 1 with one tail cell missing.

Generation 104 of wing
o$o$obo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 1 ZOOM 32 THUMBSIZE 2 AUTOSTART PAUSE 2 T 1 PAUSE 2 T 3 PAUSE 2 LOOP 4 LABEL 6 0 8 "T=#G" ]]
Evolution from nine (T=0), through block and glider (T=1), to wing (T=3)
(click above to open LifeViewer)
RLE: here Plaintext: here

Usage

Still life

Nine is a part of several still lifes, some of which are shown in the table below:

Object Population Other part
Integral sign 9 Pre-block
Tub with nine (prodigal) 10 Tub
Hook with nine Hook
Cis-boat with nine 11 Boat
Trans-boat with nine
Long hook with nine Long hook
Hungry hat Unnamed
Cis-barge with nine 12 Barge
Trans-barge with nine
Beehive with nine Beehive
Claw with nine Claw
Cis-very long hook with nine Very long hook
Trans-very long hook with nine
Twelve loop Unnamed

Oscillator

A nine is hassled by two eater 1s in a period-4 oscillator, confused eaters.

Like other common evolutionary sequences, wings can be hassled in various ways, such as in the p25 wing and block hassler[note 1][note 2] and p128 wing shuttle.

Conduit

A number of conduits have been found to produce or accept a wing (abbreviated W) with reasonable clearance, such as PF35W and WFx46H. A WSW-3 conduit[note 3] can be made by eating the extra block using a block or eater 1.

x = 4, y = 3, rule = B3/S23 2o$obo$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 16 Y -4 AUTOSTART GPS 4 PAUSE 2 T 32 PAUSE 2 T 35 PAUSE 2 LOOP 36 ]]
Block and glider reappears 32 generations later shifted 3 cells right and 7 cells up only to be turned into a B-heptomino 3 generations later
(click above to open LifeViewer)
RLE: here Plaintext: here
bo$obo$obo$bo$4b2o$4bo$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 8 THUMBSIZE 2 ]]
A pre-beehive hitting beehive reaction enters the wing sequence fairly late
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See also

Notes

  1. Catagoluep25 wing and block hassler
  2. An alternative version of this oscillator is shown in jslife with a different method of stabilization.[1] Nicolay Beluchenko found the simpler stabilization with two fumaroles later on.[2] However, it is unknown when or by whom this reaction was found.[3]
  3. Link to RLE: patterns/wswminus3.rle.

References

  1. Jason Summers' jslife pattern collection. Retrieved on November 9, 2021.
  2. Matthias Merzenich (April 18, 2018). "osc-supplement pattern collection". Retrieved on November 9, 2021.
  3. David Raucci (December 11, 2020). Updated oscillator stamp collection (was: Re: Golly suggestions) (discussion thread) at the ConwayLife.com forums