Glide Reflection - Glide Reflection in Cellular Automata

Glide Reflection in Cellular Automata

Glide reflection is common in Conway's Game of Life. The four most common spaceships: the glider, LWSS, MWSS and HWSS all move using glide reflection. Every two iterations these spaceships appear to have been glide reflected to their new positions. Here is the evolution of the lightweight spaceship:

o . . o . . .
. . . . o . .
o . . . o . .
. o o o o . .
. . . . . . .
. . . . . . .
. . . o o . .
. o o . o o .
. o o o o . .
. . o o . . .
. . . . . . .
. . o o o o .
. o . . . o .
. . . . . o .
. o . . o . .
. . . o o . .
. . o o o o .
. . o o . o o
. . . . o o .
. . . . . . .

This then carries on glide reflecting in a similar manner.

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Famous quotes containing the words glide and/or reflection:

    “Novels so often provide an anodyne and not an antidote, glide one into torpid slumbers instead of rousing one with a burning brand.”
    —Virginia Woolf (1882–1941)

    “The reflection of her here, and then there,
    Is another shadow, another evasion,
    Another denial. If she is everywhere,
    She is nowhere, to him.
    But this she has made.”
    —Wallace Stevens (1879–1955)