Piston

	Piston
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	<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>2o7b2o$obo2bo2bobo$2b4o2bo2b$obo2bo2bobo$2o7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ LOOP 2 GPS 2 THUMBSIZE 2 ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
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Pattern type	Oscillator
Number of cells	23
Bounding box	11×5
Frequency class	38.9
Period	2
Mod	1
Heat	4
Volatility	0.16
Strict volatility	0.16
Rotor type	Orthogonal on-off
Discovered by	Unknown
Year of discovery	1971
Rules
Outer-totalistic rules	B3/S23 – B3678/S01235678
Important rules	Conway Life, HighLife
# of rules	29 = 512
Isotropic rules	B3i/S2-cn3enq – B2kn34-a5-eq678/S01234-t5678
Glider synthesis
Fewest gliders	6
Catagolue-generated RLE	piston_synth.rle
Uploaded synthesis RLE	piston_synth.rle
Pattern files
Plaintext	piston.cells
RLE	piston.rle
Identifiers
apgcode	xp2_rhe44ewehr
Pentadecathlon ID	23P2.201

Piston is a period-2 oscillator found in 1971.[1] Its usage is similar to that of the spark coil. It can be extended indefinitely along its axis, with varying degrees of dihedral symmetry according to its parity. (Its rotors are used in an agar shown at Agar#Tile_agars.)

Synthesis

gmc_nxtman found a 6-glider synthesis of the piston on July 26, 2017.[2]

Image gallery

A long piston.

gollark: Which is basically just `concat . map`, but whatever.

gollark: `concatMap`?

gollark: 🌵

gollark: ¿How is it not working well?

gollark: * quite easy

References

Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
gmc_nxtman (July 26, 2017). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

External links

Piston at the Life Lexicon

Piston at Adam P. Goucher's Catagolue

Long piston at Adam P. Goucher's Catagolue

23P2.201 at Heinrich Koenig's Game of Life Object Catalogs

This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[1] Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.

[post47302-2] _nxtman (July 26, 2017). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums