4-engine Cordership: Difference between revisions
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The '''4-engine Cordership''' is a diagonal [[:Category:Spaceships with speed c/12|c/12]] [[spaceship]] that was discovered by [[:Category:Patterns found by David Bell|David Bell]] on July 9, [[:Category:Patterns found in 2005|2005]]. It is the smallest known [[Cordership]] in terms of its minimum population of 134 [[cell]]s. David Bell used this spaceship to create a small [[sawtooth]], [[sawtooth 260]].<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2005/08/new_sawtooth_patterns.html|title=New Sawtooth Patterns|author=Dave Greene|date=August 10, 2005 |accessdate=April 21, 2017}}</ref> | The '''4-engine Cordership''' is a diagonal [[:Category:Spaceships with speed c/12|c/12]] [[spaceship]] that was discovered by [[:Category:Patterns found by David Bell|David Bell]] on July 9, [[:Category:Patterns found in 2005|2005]]. It is the smallest known [[Cordership]] in terms of its minimum population of 134 [[cell]]s. David Bell used this spaceship to create a small [[sawtooth]], [[sawtooth 260]].<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2005/08/new_sawtooth_patterns.html|title=New Sawtooth Patterns|author=Dave Greene|date=August 10, 2005 |accessdate=April 21, 2017}}</ref> | ||
Revision as of 11:13, 1 July 2017
| 4-engine Cordership | |||||||||
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| Pattern type | Spaceship | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Family | Cordership | ||||||||
| Number of cells | 134 | ||||||||
| Bounding box | 76 × 76 | ||||||||
| Direction | Diagonal | ||||||||
| Period | 96 (mod: 96) | ||||||||
| Speed | c/12 | Unknown | ||||||||
| Heat | 178.0 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | David Bell | ||||||||
| Year of discovery | 2005 | ||||||||
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The 4-engine Cordership is a diagonal c/12 spaceship that was discovered by David Bell on July 9, 2005. It is the smallest known Cordership in terms of its minimum population of 134 cells. David Bell used this spaceship to create a small sawtooth, sawtooth 260.[1]
A slight modification of this Cordership that is asymmetric, with a minimum population of 136 cells, is also quite well-known and displayed below.
In November 2014 Michael Simkin discovered an alternate 4-engine Cordership, with temporally independent front and back halves -- the last two switch engines can be delayed by any number of ticks relative to the front.[2]
Image gallery
 RLE: here |
See also
References
- ↑ Dave Greene (August 10, 2005). "New Sawtooth Patterns". Retrieved on April 21, 2017.
- ↑ Michael Simkin (November 5, 2014). "Four engine extendable Cordership". Retrieved on April 21, 2017.
External links
- 4-engine Cordership at Adam P. Goucher's Catagolue (extended)
Categories:
- Patterns
- Spaceships with between 130 and 139 cells
- Periodic objects with minimum population between 130 and 139
- Patterns with between 130 and 139 cells
- Patterns found by David Bell
- Patterns found in 2005
- Patterns that can be constructed with 14 gliders
- Spaceships
- Spaceships with period 96
- Diagonal spaceships
- Spaceships with speed c/12
- Spaceships with heat between 170 and 179
- Cordership variants
- Spaceships with mod 96