Annelid
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| Annelid | |||||||||
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| Pattern type | Spaceship | ||||||||
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| Number of cells | 168807151 | ||||||||
| Bounding box | 16.7 M × 5.2 M | ||||||||
| Direction | Oblique | ||||||||
| Slope | 28/3 | ||||||||
| Period | 252 (mod: 252) | ||||||||
| Speed | (28,3)c/84 | (84,9)c/252 | ||||||||
| Heat | Unknown | ||||||||
| Kinetic symmetry | n | ||||||||
| Discovered by | Brithos | ||||||||
| Year of discovery | 2026 | ||||||||
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The annelid (also called “praying mantis” or just “mantis”) is a (28,3)c/84 spaceship which was constructed by Brithos and finalised on 22 June 2026.[1] It is an oblique spaceship based on the (28,3)c/84 Herschel climber.
Its obscene size places it as perhaps the largest notable pattern discovered to date, cleanly surpassing the original unnamed (34,7)c/156 spaceship by over a factor of six and being over ten times the size of the caterpillar, while also having a bounding box far outclassing that of high-footprint patterns such as the Spartan universal computer-constructor. As of November 2026, there have been no smaller spaceships of this specific speed constructed.
References
- ↑ Brithos (June 22, 2026). Unfinished Herschel Climber (28,3) (discussion thread) at the ConwayLife.com forums
Categories:
- Patterns
- Spaceships with between 100,000,000 and 999,999,999 cells
- Periodic objects with minimum population between 100,000,000 and 999,999,999
- Patterns with between 100,000,000 and 999,999,999 cells
- Patterns found by Brithos
- Patterns found in 2026
- Outer-totalistically endemic patterns
- Spaceships
- Spaceships with period 252
- Oblique spaceships
- Spaceships with slope 28/3
- Spaceships with speed (28,3)c/84
- Spaceships with unsimplified speed (84,9)c/252
- Spaceships with mod 252
- Spaceships with n symmetry
- Engineered spaceships
- Macro-spaceships