Racetrack: Difference between revisions

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Photonegative
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{{StillLifeComponent
{{StillLifeComponent
|name           = Racetrack
|name         = Racetrack
|pname           = racetrack
|pname       = racetrack
|type           = Induction coil
|type         = Induction coil
|c               = 12
|c           = 12
|bx             = 6
|bx           = 6
|by             = 4
|by           = 4
|plaintext       = true
|symmetry    = C1
|rle             = true
|plaintext   = true
|viewerconfig   = #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 48 ]]
|rle         = true
|viewerconfig = #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 48 ]]
}}
}}
{{disambiglink}}
{{disambiglink}}
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== External links ==
== External links ==
* {{LinkCatagolue|xp2_04aab96zc813|patternname=Racetrack and ortho-beacon}}
* {{LinkCatagolue|xp2_04aab96zc813|patternname=Racetrack and ortho-beacon}}
__NOTOC__
__NOTOC__
[[Category:Sparks]]
[[Category:Sparks]]

Latest revision as of 21:18, 21 August 2024

Racetrack
x = 6, y = 4, rule = B3/S23 3b2o$b3obo$o4bo$b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ HEIGHT 500 THUMBSIZE 3 ZOOM 48 ]]
Pattern type Induction coil
Number of cells 12
Bounding box 6 × 4
Static symmetry C1
Discovered by Unknown
Year of discovery Unknown
For other uses of 'Racetrack', see Racetrack (disambiguation).

Racetrack[1] is an induction coil.

It can be seen as containing a photonegative Q-pentomino.

It can be welded onto itself to form racetrack-weld-racetrack (shown below), four of which form cloverleaf interchange.

x = 6, y = 6, rule = B3/S23 4bo$3bobo$3bobo$b2o2bo$o4bo$b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 24 ]]
racetrack-weld-racetrack
(click above to open LifeViewer)
RLE: here Plaintext: here

Together with an unnamed still life (apgcode xs24_259aczcid1d93), the cis-mirrored racetrack is the largest still life (with 24 cells) known to be constructible in 4 gliders.

x = 6, y = 9, rule = B3/S23 3b2o$b3obo$o4bo$b4o2$b4o$o4bo$b3obo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 24 ]]
cis-mirrored racetrack
(click above to open LifeViewer)
Catagolue: here

References

  1. ↑ Catagolue, infra.