Spaceship
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Engineered spaceships
Engineered spaceships, also known as caterpillars after the first known engineered spaceship, are defined as spaceships consisting of many small interacting components.[1] Almost all engineered spaceships are composed of hundreds of thousands to well over millions of active cells. Engineered spaceships still have fixed speeds, and tend to rely on "crawlers", reactions in which a pattern reacts with another pattern, producing both the patterns in different positions; such as the pi crawler.
| Speed | Direction | Smallest known | Minimum # of cells | |
|---|---|---|---|---|
| c/2 | orthogonal | pufferfish spaceship | 235 | |
| 17c/45 | orthogonal | caterpillar | 11,880,063 | |
| 31c/240 | orthogonal | centipede | 620,901 | |
| c/12 | diagonal | 4-engine Cordership | 134 | |
| (23,5)c/79 | slope 23/5 | waterbear | 197,896 | |
- ↑ Alexey Nigin (7 Mar 2016). "New Spaceship Speed in Conway’s Game of Life". Retrieved on 11 Jun 2016.