Difference between revisions of "3-engine Cordership"
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{{Spaceship | {{Spaceship | ||
|name | |name = 3-engine Cordership | ||
|pname | |pname = 3enginecordership | ||
| | |family = Cordership | ||
|c | |c = 149 | ||
|bx | |bx = 58 | ||
|by | |by = 65 | ||
|dir | |dir = Diagonal | ||
|p | |p = 96 | ||
|s | |m = 48 | ||
|h | |s = c/12 | ||
|discoverer | |z = 8c/96 | ||
|discoveryear = 2004 | |h = 156.1 | ||
|synthesis | |discoverer = Paul Tooke | ||
|synthesisRLE = true | |discoveryear = 2004 | ||
| | |rulemin = B3/S23 | ||
| | |rulemax = B3/S23 | ||
| | |rulespecial = [[Conway's Game of Life|Conway Life]] | ||
| | |isorulemin = B3/S23 | ||
|isorulemax = B3/S23 | |||
|synthesis = 11 | |||
|synthesisRLE = true | |||
|plaintext = true | |||
|rle = true | |||
|viewerconfig = #C [[ ZOOM 4 TRACKLOOP 96 -1/12 -1/12 THUMBSIZE 2 GPS 12 HEIGHT 480 WIDTH 480 ]] | |||
|apgcode = xq96_ya33zy2ooy0ccimzyc73goozgo042kcy7cga3z1h9hyeo0gzw1yboow13631z0guh07zykgoo488y9goggwko8zyk262ybc1e08bzyqgo042kcy5o48zyq1h9hya24y233zys1yboozyrguh07 | |||
|pentadecathlonid = 149P96H8V8.1 | |||
}} | }} | ||
The '''3-engine Cordership''' is a | The '''3-engine Cordership''' is a [[c/12 diagonal]] [[spaceship]] that was discovered by [[Paul Tooke]] on January 12, {{year|2004}}. Until the [[2-engine Cordership]] was found, it was the [[Cordership]] that used the fewest number of known possible [[switch engine]]s. Despite this, the [[4-engine Cordership]] is smaller in terms of minimum population (the [[2-engine Cordership]] beating both). | ||
The 3-engine Cordership can easily be destroyed by three [[eater | [[David Bell]] discovered in {{year|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 1]]s and four [[block]]s, as shown below. This cleanup reaction was found by [[Jason Summers]]. | |||
==Incremental construction== | ==Incremental construction== | ||
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{| | {| | ||
|- | |- | ||
| | |{{EmbedViewer | ||
| | |pname = 3enginecordershipeater | ||
|position = center | |||
|caption = 3-engine Cordership eater using [[eater 1]]s and [[block]]s<br> | |||
|viewerconfig = [[ ZOOM 5 HEIGHT 480 ]] | |||
}} | |||
|{{EmbedViewer | |||
|pname = 3enginecordershiplwssreflection | |||
|position = center | |||
|caption = 3-engine Cordership about to reflect a lightweight spaceship by 90 degrees<br> | |||
|viewerconfig = [[ ZOOM 6 HEIGHT 480 ]] | |||
}} | |||
|} | |} | ||
==See also== | ==See also== | ||
*[[3-engine Cordership rake]] | *[[3-engine Cordership rake]] | ||
*[[2-engine Cordership]] | |||
*[[Sawtooth 260]] | *[[Sawtooth 260]] | ||
==References== | ==References== | ||
<references /> | <references /> | ||
==External links== | |||
{{LinkCatagolue|xq96_ya33zy2ooy0ccimzyc73goozgo042kcy7cga3z1h9hyeo0gzw1yboow13631z0guh07zykgoo488y9goggwko8zyk262ybc1e08bzyqgo042kcy5o48zyq1h9hya24y233zys1yboozyrguh07|format=extended}} | |||
{{LinkPentadecathlonObject|149P96H8V8.1}} | |||
[[Category:Engineered spaceships]] | |||
[[Category:Non-monotonic spaceships]] | |||
[[Category:glide symmetric spaceships]] | [[Category:glide symmetric spaceships]] |
Revision as of 07:22, 10 August 2020
3-engine Cordership | |||||||||
View static image | |||||||||
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 | 8c/96 | ||||||||
Heat | 156.1 | ||||||||
Discovered by | Paul Tooke | ||||||||
Year of discovery | 2004 | ||||||||
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The 3-engine Cordership is a c/12 diagonal spaceship that was discovered by Paul Tooke on January 12, 2004. Until the 2-engine Cordership was found, it was the Cordership that used the fewest number of known possible switch engines. Despite this, the 4-engine Cordership is smaller in terms of minimum population (the 2-engine Cordership beating both).
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 1s 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
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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)
- 149P96H8V8.1 at Heinrich Koenig's Game of Life Object Catalogs
- 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
- 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 150 and 159
- Cordership variants
- Spaceships with mod 48
- Engineered spaceships
- Non-monotonic spaceships
- Glide symmetric spaceships