PT Paul Tooke SAS Stephen Silver TC Tim Coe Oscillator periods For green status, an oscillator must have a cell that oscillates at the full period, rather than some smaller factor of that period. One such cell is sufficient. Yellow means that the only known examples contain no cells that oscillate at the full period. Yellow means that the reflector requires the glider stream to have no gaps. All higher periods are known.
All lower periods are impossible.
All higher periods are known. For this table, the wick is required to be reasonably closely connected in all phases. This table lists the known spaceship periods up to 36 for each velocity. Periods not possible at any of the known velocities are omitted to save space. Yellow means that a puffer is known, but a clean rake remains to be found.