|View static image|
|Number of cells||2|
|Discovered by||John Conway|
|Year of discovery||1969|
Domino sparks are arguably the most common type of spark of all, as they arise as the last living state of larger sparks such as the banana spark (and therefore cavity), V spark (and therefore the phi spark and table).
Production of dominoes as sparks
Domino sparks can either be produced parallel or perpendicular to an oscillator's bounding box. Parallel cases are the most common, with heavyweight emulators and volcanoes being producers of them. Perpendicular cases are referred to as pipsquirters.
They are also notably produced by the heavyweight spaceship.
Use in oscillators
The squaredance agar is entirely comprised of dominoes.