3-engine Cordership: Difference between revisions
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The '''3-engine Cordership''' is a diagonal [[:Category:Spaceships with speed c/12|c/12]] [[spaceship]] that was discovered by [[:Category:Patterns found by Paul Tooke|Paul Tooke]] on January 12, [[:Category:Patterns found in 2004|2004]]. | The '''3-engine Cordership''' is a diagonal [[:Category:Spaceships with speed c/12|c/12]] [[spaceship]] that was discovered by [[:Category:Patterns found by Paul Tooke|Paul Tooke]] on January 12, [[:Category:Patterns found in 2004|2004]]. Until the [[2-engine Cordership]] was found, it was the [[Cordership]] that uses the fewest number of known possible [[switch engine]]s. The [[4-engine Cordership]] and 2-engine Cordership are both smaller than the 3-engine Cordership in terms of minimum population. | ||
[[:Category:Patterns found by David Bell|David Bell]] discovered in [[:Category:Patterns found in 2005|2005]] that the 3-engine Cordership can be used to turn a [[lightweight spaceship]] 90 degrees as shown below.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2005/06/new_compact_corderships.html |title=New Compact Corderships |publisher=Dave Greene |date=June 18, 2005|accessdate=June 10, 2009}}</ref> It could be [[glider synthesis|constructed]] with 15 [[glider]]s, and Tooke created a [[gun]] for this spaceship only a week after its original construction (see [[3-engine Cordership gun]]). In March 2017 Luka Okanishi discovered a three-glider synthesis for a switch engine, which reduced the recipe to only 11 gliders.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=279&p=41558#p41557 |title=Re: Thread For Your Accidental Discoveries|publisher=Luka Okanishi|date=March 12, 2017|accessdate=March 13, 2017}}</ref> | |||
The 3-engine Cordership can easily be destroyed by three [[eater 2]]s and four [[block]]s, as shown below. This cleanup reaction was found by [[Jason Summers]]. | The 3-engine Cordership can easily be destroyed by three [[eater 2]]s and four [[block]]s, as shown below. This cleanup reaction was found by [[Jason Summers]]. | ||
Revision as of 20:40, 31 December 2017
| 3-engine Cordership | |||||||||
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| Pattern type | Spaceship | ||||||||
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| Family | Cordership | ||||||||
| Number of cells | 149 | ||||||||
| Bounding box | 58 × 65 | ||||||||
| Direction | Diagonal | ||||||||
| Period | 96 (mod: 48) | ||||||||
| Speed | c/12 | Unknown | ||||||||
| Heat | 156.1 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Paul Tooke | ||||||||
| Year of discovery | 2004 | ||||||||
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The 3-engine Cordership is a diagonal c/12 spaceship that was discovered by Paul Tooke on January 12, 2004. Until the 2-engine Cordership was found, it was the Cordership that uses the fewest number of known possible switch engines. The 4-engine Cordership and 2-engine Cordership are both smaller than the 3-engine Cordership in terms of minimum population.
David Bell discovered in 2005 that the 3-engine Cordership can be used to turn a lightweight spaceship 90 degrees as shown below.[1] It could be constructed with 15 gliders, and Tooke created a gun for this spaceship only a week after its original construction (see 3-engine Cordership gun). In March 2017 Luka Okanishi discovered a three-glider synthesis for a switch engine, which reduced the recipe to only 11 gliders.[2]
The 3-engine Cordership can easily be destroyed by three eater 2s and four blocks, as shown below. This cleanup reaction was found by Jason Summers.
Incremental construction
Dave Greene discovered a glider synthesis for upgrading a switch engine to a wing, which can be repeated to form the complete Cordership. Adam P. Goucher then built a Herschel conduit to convert a glider into a 3-engine Cordership.[3]
Image gallery
 RLE: here |
 RLE: here |
See also
References
- ↑ "New Compact Corderships". Dave Greene (June 18, 2005). Retrieved on June 10, 2009.
- ↑ "Re: Thread For Your Accidental Discoveries". Luka Okanishi (March 12, 2017). Retrieved on March 13, 2017.
- ↑ "First complete glider-to-Cordership converter". Dave Greene (February 7, 2009). Retrieved on June 15, 2009.
External links
- 3-engine Cordership at Adam P. Goucher's Catagolue (extended)
Categories:
- Patterns
- Spaceships with between 140 and 149 cells
- Periodic objects with minimum population between 140 and 149
- Patterns with between 140 and 149 cells
- Patterns found by Paul Tooke
- Patterns found in 2004
- Patterns that can be constructed with 11 gliders
- Spaceships
- Spaceships with period 96
- Diagonal spaceships
- Spaceships with speed c/12
- Spaceships with heat between 150 and 159
- Cordership variants
- Spaceships with mod 48
- Glide symmetric spaceships