The glider pusher is an arrangement of a queen bee shuttle and a pentadecathlon. It emits a v spark predecessor, which can push the path of a passing glider out by one half-diagonal space and change its parity. It was found by Dieter Leithner in December 1993.
It is useful for constructing complex guns where it may be necessary to produce a number of gliders travelling on close parallel paths. For instance, it is used in the northern part of the sidecar gun.
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