Photon

A photon is a spaceship moving at the speed of light. Photons are not possible in Conway's Game of Life, in which the maximum speed of a slope-n spaceship is c / (2n + 2); they do, however, exist in other Life-like rules, for example Seeds or Live Free or Die. Photons in some Life-like rules are capable of emulating 1-dimensional cellular automata, leading to a proof of photon omniperiodicity in at least one case.

x = 2, y = 4, rule = B2/S bo$o$o$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 THUMBLAUNCH THUMBSIZE 3 ZOOM 48 GPS 1 AUTOSTART TRACKLOOP 1 -1 0 ]]

The moon is a common photon in many B2 rules (click above to open LifeViewer)

See also

• Grin