Weekender: Difference between revisions
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==External links== | ==External links== | ||
*[http://arxiv.org/abs/cs/0004003 Searching for Spaceships] - Eppstein's paper describing the discovery of the weekender | *[http://arxiv.org/abs/cs/0004003 Searching for Spaceships] - Eppstein's paper describing the discovery of the weekender | ||
{{LinkWeisstein|Weekender.html}} | |||
{{LinkLexicon|lex_w.htm#weekender}} | |||
[[Category:Non-monotonic spaceships]] | [[Category:Non-monotonic spaceships]] | ||
Revision as of 23:31, 12 May 2009
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| Pattern type | Spaceship | ||||||
|---|---|---|---|---|---|---|---|
| Number of cells | 36 | ||||||
| Bounding box | 16 × 11 | ||||||
| Direction | Orthogonal | ||||||
| Period | 7 (mod: Unknown) | ||||||
| Speed | 2c/7 | Unknown | ||||||
| Heat | 45.1 | ||||||
| Kinetic symmetry | Unspecified | ||||||
| Discovered by | David Eppstein | ||||||
| Year of discovery | 2000 | ||||||
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Weekender is an orthogonal spaceship that was found by David Eppstein in January 2000. On April 27, 2000, Stephen Silver found a tagalong for a pair of weekenders (shown below). At present, n weekenders pulling n-1 or fewer tagalongs constitute the only known spaceships with speed 2c/7 or period 7.
Image gallery
 RLE: here |
External links
- Searching for Spaceships - Eppstein's paper describing the discovery of the weekender
- Weekender at the Life Lexicon