Cauldron

	Cauldron
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	<a href="/wiki/File:Cauldron.png" class="image" title="Cauldron image"><img alt="Cauldron image" src="/w/images/3/37/Cauldron.png" decoding="async" width="105" height="121" /></a>
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Pattern type	Oscillator
Oscillator type	Billiard table
Number of cells	32
Bounding box	11 × 13
Period	8
Mod	8
Heat	2.8
Volatility	0.20
Strict volatility	0.18
Discovered by	Robert Wainwright; Don Woods
Year of discovery	1971
Rules
Outer-totalistic rules	B3/S23 – B378/S23678
# of rules	25 = 32
Isotropic rules	B3eiry/S2-n3-aj – B2n34ackz5acin6c78/S1c234-int5-e678
Glider synthesis
Fewest gliders (canonical)	38†
Catagolue-generated RLE (canonical)	synthesis
Fewest gliders (cheapest variant)	24†
Catagolue-generated RLE (cheapest variant)	synthesis
Uploaded synthesis RLE	cauldron_synth.rle
	†Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files
Plaintext	cauldron.cells
RLE	cauldron.rle
Identifiers
apgcode (canonical)	xp8_xgba9jz624b888b426zy0252
apgcode (cheapest variant)	xp8_x3lkl3z178ngggn871zy04ac
Pentadecathlon ID	32P8.1

Cauldron (or crucible^[1]) is a period-8 billiard table oscillator that was found in 1971 independently by Don Woods and Robert Wainwright.^[2]^[3] A 24-glider synthesis is known for a variation of this oscillator with a slightly larger stator.

References

↑ "Cauldron". The Life Lexicon. Stephen Silver. Retrieved on December 3, 2018.
↑ Robert Wainwright (September 1971). Lifeline, vol 3, page 3.
↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.