Difference between revisions of "Copperhead"
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|dir = Orthogonal | |dir = Orthogonal | ||
|p = 10 | |p = 10 | ||
|m | |m = 10 | ||
|s = c/10 | |s = c/10 | ||
|h = 27.8 | |h = 27.8 | ||
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|rulemax = B38/S0238 | |rulemax = B38/S0238 | ||
|rulespecial = [[Conway's Game of Life|Conway Life]] | |rulespecial = [[Conway's Game of Life|Conway Life]] | ||
|synthesis = | |synthesis = 13 | ||
|synthesisRLE = true | |synthesisRLE = true | ||
|rle = true | |rle = true | ||
|animated = true | |animated = true | ||
|viewerconfig = #C [[ TRACKLOOP 10 0 -1/10 THUMBSIZE 3 GPS 5 HEIGHT 800 WIDTH 483 ]] | |viewerconfig = #C [[ TRACKLOOP 10 0 -1/10 THUMBSIZE 3 GPS 5 HEIGHT 800 WIDTH 483 ]] | ||
|apgcode = xq10_o5995ozes88sezw33 | |||
}} | }} | ||
'''Copperhead''' is a [[c/10 orthogonal]] [[spaceship]] discovered by | '''Copperhead''' is a [[c/10 orthogonal]] [[spaceship]] discovered by [[zdr]] on March 5, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057|title=is this c/10 spaceship known?|author=zdr|date=March 5, 2016|accessdate=March 5, 2016}}</ref> | ||
<div style="clear:left"> | <div style="clear:left"> | ||
==Reactions== | ==Reactions== | ||
| Line 28: | Line 29: | ||
===Fireship=== | ===Fireship=== | ||
[[Simon Ekström]] found [[Fireship|what appeared to be a tagalong]] with a large spark on March 20, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?p=28956#p28956|title=Re: is this c/10 spaceship known?|author=Simon Ekström|date=March 20, 2016|accessdate=March 20, 2016}}</ref> Unlike most tagalongs, this tagalong actually temporarily interacts with the hauled block, and is thus not a true tagalong but a whole new spaceship.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057&start=175#p28988|title=Re: is this c/10 spaceship known?|author=towerator|date=20 March 2016|accessdate=30 June 2016}}</ref> However, blocks hauled by the tagalongs in tagalong pyramids are unaffected, and are thus true tagalongs. | [[Simon Ekström]] found [[Fireship|what appeared to be a tagalong]] with a large spark on March 20, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?p=28956#p28956|title=Re: is this c/10 spaceship known?|author=Simon Ekström|date=March 20, 2016|accessdate=March 20, 2016}}</ref> Unlike most tagalongs, this tagalong actually temporarily interacts with the hauled block, and is thus not a true tagalong but a whole new spaceship, named [[fireship]] due to its unusual spark.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057&start=175#p28988|title=Re: is this c/10 spaceship known?|author=towerator|date=20 March 2016|accessdate=30 June 2016}}</ref> However, blocks hauled by the tagalongs in tagalong pyramids are unaffected, and are thus true tagalongs. | ||
===Cottonmouth=== | |||
[[Cottonmouth|A true pushalong]] was found by [[AforAmpere]] on March 24, 2018.<ref>http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2031&hilit=cottonmouth&start=600#p58357</ref> | |||
==Synthesis== | ==Synthesis== | ||
The first synthesis was proposed by Aidan F. Pierce on the day of discovery. An alternative synthesis utilising [[fumarole]] as a predecessor, presented by Tanner Jacobi an hour later, was much more efficient. After optimizations by Mark Niemiec and Chris Cain the total synthesis cost made 22 gliders. A copperhead [[gun]] was then completed by Alexey Nigin on March 6, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057&p=28103#p28101|title=Re: is this c/10 spaceship known?|author=Alexey Nigin|date=March 6, 2016|accessdate=March 6, 2016}}</ref> A faster gun was constructed one day later.<ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?p=28176#p28176|title=Re: is this c/10 spaceship known?|author=gmc_nxtman|date=7 March, 2016|accessdate= 8 March, 2016}}</ref> | The first synthesis was proposed by Aidan F. Pierce on the day of discovery. An alternative synthesis utilising [[fumarole]] as a predecessor, presented by Tanner Jacobi an hour later, was much more efficient. After optimizations by Mark Niemiec and Chris Cain the total synthesis cost made 22 gliders. A copperhead [[gun]] was then completed by Alexey Nigin on March 6, 2016.<ref>{{cite web|url=http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2057&p=28103#p28101|title=Re: is this c/10 spaceship known?|author=Alexey Nigin|date=March 6, 2016|accessdate=March 6, 2016}}</ref> A faster gun was constructed one day later.<ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?p=28176#p28176|title=Re: is this c/10 spaceship known?|author=gmc_nxtman|date=7 March, 2016|accessdate= 8 March, 2016}}</ref> | ||
The first copperhead to emerge from the [[ash]] of a [[soup]] appeared on April 4, 2016 in a [[Symmetry|D2_+2]] haul submitted to [[apgsearch|Catagolue]] by Apple Bottom.<ref>{{cite web|url=https://catagolue.appspot.com/haul/b3s23/D2_+2/13a2db2966f2178690fe73358a3dc2e4|title=Haul|author=Apple Bottom|date=April 4, 2016|accessdate=April 4, 2016|work=Catagolue}}</ref> | gmc_nxtman reduced the copperhead's synthesis cost to 14 gliders on July 9, 2017;<ref>{{cite web|url=http://conwaylife.com/forums/viewtopic.php?f=2&t=2057&p=46308#p46308|title=Re: is this c/10 spaceship known?|author=gmc_nxtman|date=July 9, 2017|accessdate=July 9, 2017}}</ref> 2718281828 posted a 13-glider synthesis on January 9, 2018.<ref name="post54874" /> | ||
===Soup search results=== | |||
The first copperhead to emerge from the [[ash]] of a [[soup]] appeared on April 4, 2016 in a [[Symmetry|D2_+2]] haul submitted to [[apgsearch|Catagolue]] by Apple Bottom.<ref>{{cite web|url=https://catagolue.appspot.com/haul/b3s23/D2_+2/13a2db2966f2178690fe73358a3dc2e4|title=Haul|author=Apple Bottom|date=April 4, 2016|accessdate=April 4, 2016|work=Catagolue}}</ref> Three copperheads have since been found in this symmetry, alongside one in D4_+4 and two in D8_4. | |||
==Naming== | ==Naming== | ||
| Line 55: | Line 63: | ||
==References== | ==References== | ||
<references/> | <references> | ||
<ref name="post54874">{{LinkForumThread | |||
|accessdate = January 9, 2018 | |||
|date = January 9, 2018 | |||
|author = 2718281828 | |||
|title = Re: Small Spaceship Syntheses | |||
|p = 54874 | |||
|format = ref | |||
}}</ref> | |||
</references> | |||
==External links== | ==External links== | ||
{{LinkCatagolue|xq10_o5995ozes88sezw33}} | {{LinkCatagolue|xq10_o5995ozes88sezw33}} | ||
{{LinkLexicon|lex_c.htm#copperhead}} | |||
* Alexey Nigin: ''[https://niginsblog.wordpress.com/2016/03/07/new-spaceship-speed-in-conways-game-of-life/ New Spaceship Speed in Conway’s Game of Life]'' | * Alexey Nigin: ''[https://niginsblog.wordpress.com/2016/03/07/new-spaceship-speed-in-conways-game-of-life/ New Spaceship Speed in Conway’s Game of Life]'' | ||
[[Category:Non-monotonic spaceships]] | [[Category:Non-monotonic spaceships]] | ||
{{Symmetry|orthogonal2}} | |||
__NOTOC__ | __NOTOC__ | ||
Revision as of 23:09, 20 October 2018
| Copperhead | |||||||||
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| Pattern type | Spaceship | ||||||||
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| Number of cells | 28 | ||||||||
| Bounding box | 6 × 12 | ||||||||
| Direction | Orthogonal | ||||||||
| Period | 10 | ||||||||
| Mod | 10 | ||||||||
| Speed | c/10 | Unknown | ||||||||
| Heat | 27.8 | ||||||||
| Discovered by | zdr | ||||||||
| Year of discovery | 2016 | ||||||||
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Copperhead is a c/10 orthogonal spaceship discovered by zdr on March 5, 2016.[1]
Reactions
The ship hauls a block behind it, which makes for interesting reactions involving other ships. Dean Hickerson built a sawtooth, that uses copperhead's ability to turn a heavyweight spaceship into a loaf.[2] It can also eat gliders and middleweight spaceships cleanly from behind, and lightweight spaceships from the side of the block. Its front end can cleanly burn through blinkers, creating a c/10 blinker fuse.
Fireship
Simon Ekström found what appeared to be a tagalong with a large spark on March 20, 2016.[3] Unlike most tagalongs, this tagalong actually temporarily interacts with the hauled block, and is thus not a true tagalong but a whole new spaceship, named fireship due to its unusual spark.[4] However, blocks hauled by the tagalongs in tagalong pyramids are unaffected, and are thus true tagalongs.
Cottonmouth
A true pushalong was found by AforAmpere on March 24, 2018.[5]
Synthesis
The first synthesis was proposed by Aidan F. Pierce on the day of discovery. An alternative synthesis utilising fumarole as a predecessor, presented by Tanner Jacobi an hour later, was much more efficient. After optimizations by Mark Niemiec and Chris Cain the total synthesis cost made 22 gliders. A copperhead gun was then completed by Alexey Nigin on March 6, 2016.[6] A faster gun was constructed one day later.[7]
gmc_nxtman reduced the copperhead's synthesis cost to 14 gliders on July 9, 2017;[8] 2718281828 posted a 13-glider synthesis on January 9, 2018.[9]
Soup search results
The first copperhead to emerge from the ash of a soup appeared on April 4, 2016 in a D2_+2 haul submitted to Catagolue by Apple Bottom.[10] Three copperheads have since been found in this symmetry, alongside one in D4_+4 and two in D8_4.
Naming
Various names were proposed on the day of the ship's discovery; for example copperhead, blockhauler, decapod, cuttlefish and blockfish. zdr settled on copperhead.[11]
Gallery
 |
In other rules
DryLife's goldenhead.
In the cellular automaton DryLife, an extremely similar spaceship (dubbed the goldenhead) also travels at c/10 orthogonal. It differs from the normal copperhead by 2 cells in one phase. A normal copperhead at this phase will turn into a goldenhead in DryLife, and conversely this phase will return to a copperhead in normal Life.
See also
References
- ↑ zdr (March 5, 2016). "is this c/10 spaceship known?". Retrieved on March 5, 2016.
- ↑ Dean Hickerson (6 March, 2016). "Re: is this c/10 spaceship known?".
- ↑ Simon Ekström (March 20, 2016). "Re: is this c/10 spaceship known?". Retrieved on March 20, 2016.
- ↑ towerator (20 March 2016). "Re: is this c/10 spaceship known?". Retrieved on 30 June 2016.
- ↑ http://www.conwaylife.com/forums/viewtopic.php?f=2&t=2031&hilit=cottonmouth&start=600#p58357
- ↑ Alexey Nigin (March 6, 2016). "Re: is this c/10 spaceship known?". Retrieved on March 6, 2016.
- ↑ gmc_nxtman (7 March, 2016). "Re: is this c/10 spaceship known?". Retrieved on 8 March, 2016.
- ↑ gmc_nxtman (July 9, 2017). "Re: is this c/10 spaceship known?". Retrieved on July 9, 2017.
- ↑ 2718281828 (January 9, 2018). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
- ↑ Apple Bottom (April 4, 2016). "Haul". Catagolue. Retrieved on April 4, 2016.
- ↑ zdr (6 March 2016). "Re: is this c/10 spaceship known?". Retrieved on 5 July 2016.
External links
- Copperhead at the Life Lexicon
- Alexey Nigin: New Spaceship Speed in Conway’s Game of Life
Categories:
- Patterns
- Spaceships with 28 cells
- Periodic objects with minimum population 28
- Patterns with 28 cells
- Patterns found by zdr
- Patterns found in 2016
- Patterns that can be constructed with 13 gliders
- Spaceships
- Spaceships with period 10
- Orthogonal spaceships
- Spaceships with speed c/10
- Spaceships with heat 27
- Spaceships with mod 10
- Non-monotonic spaceships
- Patterns with bilateral orthogonal symmetry