! "main" (cells 1419 length 58 width 324 generation 0)
! Three glider turning reactions for c/3 spaceships.
! The left reaction turns a forwards glider into another forwards glider whose
! sideways direction is reversed.  It uses period 24 and period 3 spaceships.
! The other two reactions turn a forwards glider into backwards gliders,
! either reversing the sideways direction or preserving it.  They use period
! 15 and period 3 spaceships.
! David I. Bell, June 1996
21k154h@!
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