7-engine Cordership
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7-engine Cordership | |||||||||||
View static image | |||||||||||
Pattern type | Spaceship | ||||||||||
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Family | Cordership | ||||||||||
Number of cells | 180 | ||||||||||
Bounding box | 71×65 | ||||||||||
Direction | Diagonal | ||||||||||
Period | 96 | ||||||||||
Mod | 48 | ||||||||||
Speed | c/12 | ||||||||||
Speed (unsimplified) | 8c/96 | ||||||||||
Heat | 196.3 | ||||||||||
Discovered by | Dean Hickerson | ||||||||||
Year of discovery | 1993 | ||||||||||
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The 7-engine Cordership is a c/12 diagonal spaceship that was discovered by Dean Hickerson on August 14, 1993. Until the discovery of the 6-engine Cordership almost five years later, it was the Cordership that used the fewest known possible switch engines. Corderships that use as few as 2 engines are now known.
This particular Cordership can be used to reflect gliders in a variety of ways. The image below shows two gliders that will be turned counterclockwise by 90 degrees (in red), a glider that will be reflected 180 degrees (in green), and a glider that will be turned into a southbound lightweight spaceship (in blue).[1][2] For another method of performing a 180-degree glider reflection using the 7-engine Cordership, see glider loop.
See also
References
- ↑ Alan Hensel's lifep.zip pattern collection.
- ↑ corder2.lif at Paul Callahan's Page of Conway's Life Miscellany
External links
- 7-engine Cordership at Adam P. Goucher's Catagolue (extended)
- 180P96H8V8.1 at Heinrich Koenig's Game of Life Object Catalogs
- Life (B3/S23) at David Eppstein's Glider Database
Categories:
- Patterns
- Spaceships with between 180 and 189 cells
- Periodic objects with minimum population between 180 and 189
- Patterns with between 180 and 189 cells
- Patterns found by Dean Hickerson
- Patterns found in 1993
- Outer-totalistically endemic patterns
- Isotropically endemic patterns
- Spaceships
- Spaceships with period 96
- Diagonal spaceships
- Spaceships with speed c/12
- Spaceships with unsimplified speed 8c/96
- Spaceships with heat between 190 and 199
- Cordership variants
- Spaceships with mod 48
- Engineered spaceships
- Non-monotonic spaceships
- Glide symmetric spaceships