A slide gun
is a gun
that fires gliders
or other spaceships
sideways from an extending arm. The arm consists of a salvo
of spaceships which are continually pushing a still life
or small constellation
, releasing a glider in the process. This releases a wave of spaceships rather than a stream, as each spaceship is on a different path. The first slide gun was constructed by Dietrich Leithner
in July 1994
, and was based on a diagonal block
A tethered rake
is similar to a slide gun in that it has an extending arm, but the end of the arm is in constant motion. This may mean that it has a spaceship or a volatile reaction at its front. Due to the precise timing of gliders or other spaceships required to support such reactions, tethered rakes are often more period
-dependent than slide guns.
A simple example of a tethered rake is a Simkin glider gun aimed at one of the duoplet sparks of a 58P5H1V1 spaceship.