Cavity

Cavity
x = 4, y = 3, rule = B3/S23 bobo$o2bo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART GPS 5 PAUSE 2 LOOP 10 ]]
View static image
Pattern type	Spark
Number of cells	6
Bounding box	4 × 3
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Pattern files Plaintext cavity.cells RLE cavity.rle

This article is about the spark and p2 oscillator component. For the p2 oscillator also referred to as "cavity", see Eater plug.

Cavity is a common polyplet spark, and is one of three sparks which can be obtained by removing one cell from a loaf.

Like with the banana spark, it can be used as a component in oscillator of period 2 by applying a bit spark to the duoplet-shaped region, which produces a mirrored version of the cavity. The smallest oscillator demonstrating this reaction, phoenix with cavity, has 15 cells.