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
Speed	c/2
Heat	11
Discovered by	John Conway
Year of discovery	1970
Rules All rules B3/S23 – B3468/S2378 Important rules Conway Life, HighLife # of rules 25 = 32
Glider synthesis Fewest gliders 3 Java link click here RLE lwss_synth.rle
Pattern files Life 1.05 lwss_105.lif Life 1.06 lwss_106.lif Plaintext lwss.cells RLE lwss.rle

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). It moves orthogonally at c/2 and has period 4. It was found by John Conway in 1970.

Contents 1 Tagalong 2 See also 3 References 4 External links

[edit] 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.

[edit] See also

• Heavyweight spaceship
• Infinite LWSS hotel
• Middleweight spaceship

[edit] References

1. ↑ "Small fish". The Life Lexicon. Stephen Silver. Retrieved on June 10, 2009.

[edit] External links

• Lightweight spaceship at Eric Weisstein's Treasure Trove of Life
• Lightweight spaceship at the Life Lexicon