V spark

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V spark
x = 3, y = 2, rule = B3/S23 obo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 THEME 6 HEIGHT 400 GPS 4 ]]
Pattern type Spark
Number of cells 3
Bounding box 3 × 2
Discovered by Unknown
Year of discovery 1970

A V spark is a common triplet spark, produced most notably by oscillators such as the pentadecathlon, twin bees shuttle, and the phi spark (e.g., in Tanner's p46).

The spark can convert a pre-block or block into a glider as shown below; an example application is new gun 2. It can also turn a glider into a block, so two V sparks can make a reflector. The simplest example of this mechanism is the PD-pair reflector.

x = 5, y = 4, rule = B3/S23 bo$2o2bo$3bo$4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 THEME 6 HEIGHT 400 GPS 4 LOOP 24 AUTOSTART PAUSE 3 ]]
V spark converting a pre-block into a glider
(click above to open LifeViewer)
RLE: here Plaintext: here

A V-shaped motif can be seen in many still lifes. The tub can be seen as the V spark with an additional stabilising cell, and the boat one with two. Two V sparks can be combined to create either a beehive or barge, both of which are stable. The V is generally considered too primitive to be a true still life component.

See also

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