Gemini
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Gemini | |||||||
View static image | |||||||
Pattern type | Spaceship | ||||||
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Number of cells | 846278 | ||||||
Bounding box | 4217807 × 4220191 | ||||||
Direction | Oblique | ||||||
Slope | 5 | ||||||
Period | 33699586 | ||||||
Mod | Unknown | ||||||
Speed | 2560c/16849793 | Unknown | ||||||
Heat | Unknown | ||||||
Discovered by | Andrew J. Wade | ||||||
Year of discovery | 2010 | ||||||
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Gemini is the first oblique spaceship to be constructed, and was created by Andrew J. Wade in 2010.[1] It displaces itself by 5120 cells vertically and 1024 cells horizontally every 33,699,586 generations. It derives its name from the latin, gemini, meaning twins, describing its 2 identical halves, each of which contains three Chapman-Greene construction arms. A tape of gliders continually relays between the two halves, instructing each to delete its parent and construct a daughter configuration.
It is the largest spaceship in terms of its diameter and bounding box, but has a much smaller population than the Caterpillar.
The pattern marks the thirteenth explicitly-constructed spaceship velocity, but facilitates an infinite range of related velocities. For example, Dave Greene has reduced its period by eight generations, whilst maintaining its displacement. Theoretically speaking, a Gemini-esque spaceship could be constructed with any velocity slower than (but not equal to) (1,1)c/580[2].
Videos
See Also
References
- ↑ Adam P. Goucher (May 19, 2010). "Oblique Life spaceship created". Game of Life News. Retrieved on May 21, 2010.
- ↑ "Universal Constructor Based Spaceship". Retrieved on May 21, 2010.
External links
- New Scientist: First replicating creature spawned in life simulator
- downloadable zip of the Gemini RLE file (Google is not allowing to download the file, but you can Share->Email as attachment to yourself)
- Gemini RLE file with programs used to construct it (on Google docs so download quota may be exceeded by the time you attempt download.)
- Gemini RLE file with programs used to construct it (alternate download on drop.io)
- Patterns
- Spaceships with between 100,000 and 999,999 cells
- Periodic objects with minimum population between 100,000 and 999,999
- Patterns with between 100,000 and 999,999 cells
- Patterns found by Andrew J. Wade
- Patterns found in 2010
- Outer-totalistically endemic patterns
- Spaceships
- Spaceships with period 33699586
- Oblique spaceships
- Spaceships with slope 5
- Spaceships with speed 2560c/16849793
- Universal constructors
- Engineerable spaceships