Switch engine

noun

Definitions

Noun
  1. 1
    A switcher or shunter: a railroad locomotive used for shunting.
  2. 2
    a locomotive for switching rolling stock in a railroad yard wordnet
  3. 3
    A particular methuselah in Conway's Game of Life that temporarily exhibits glide reflection symmetry while leaving debris behind, allowing for the construction of spaceships, puffers, and rakes.

    "2. Is it possible to make the switch engine leave debris other than the normal 8 blocks/288 generations?"

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