Lightweight spaceship

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Lightweight Spaceship
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Pattern type Spaceship
Number of cells 9
Bounding box 5×5
Direction Orthogonal
Period 4
Mod Unknown
Speed c/2
Speed (unsimplified) Unknown
Heat 11
Discovered by John Conway
Year of discovery 1970

The lightweight spaceship (or LWSS for short or small fish[1]) is the smallest orthogonally moving spaceship, and the second most common spaceship (after the glider). Random soups will emit one LWSS for approximately every 615 gliders.[2] It moves orthogonally at c/2 and has period 4. It was found by John Conway in 1970. Interestingly, if two LWSS collide, they produce two gliders.

Tagalong

In April 1992, David Bell found a tagalong for two lightweight spaceships (or two middleweight spaceships or two heavyweight spaceships). It can be extended indefinitely by attaching it to the back of itself. Interestingly, a hivenudger with symmetric rear (that is, both rear spaceships being of same "weight") can pull this tagalong.

Tagalong for two lightweight spaceships
Download RLE: click here

See also

References

  1. "Small fish". The Life Lexicon. Stephen Silver. Retrieved on June 10, 2009.
  2. "Spontaneous appeared Spaceships out of Random Dust". Achim Flammenkamp (December 9, 1995). Retrieved on August 18, 2011.

External links