Blinker fuse: Difference between revisions
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A '''blinker fuse''' is any [[fuse]] that burns through a line of [[blinker]]s. Alternatively, it may refer to the 2c/3 period 18 fuse that burns [[clean]]ly through [[blinker]]s that are spaced four [[cell]]s apart, shown to the right. This particular fuse can be combined with [[blinker puffer 1]] to create various interesting patterns, such as [[moving sawtooth]], [[slow puffer 1]], and [[slow puffer 2]]. | A '''blinker fuse''' is any [[fuse]] that burns through a line of [[blinker]]s. Alternatively, it may refer to the 2c/3 period 18 fuse that burns [[clean]]ly through [[blinker]]s that are spaced four [[cell]]s apart, shown to the right. This particular fuse can be combined with [[blinker puffer 1]] to create various interesting patterns, such as [[moving sawtooth]], [[slow puffer 1]], and [[slow puffer 2]]. | ||
[[House]] alone, attached to a blinker wick with spacing 4, is a predecessor to the fuse shown to the right. | [[House]] alone, attached to a blinker wick with spacing 4, is a predecessor to the fuse shown to the right. | ||
==Other 2c/3 | == Other blinker fuses == | ||
=== Orthogonal === | |||
==== 2c/3 orthogonal ==== | |||
There are two other well-known 2c/3 blinker fuses that act on blinkers that are orthogonally offset by four cells, both of which are shown below. They both burn cleanly and have period 6.<ref>{{CiteSummersPattern|name=jslife|accessdate=May 27, 2009}}</ref> | There are two other well-known 2c/3 blinker fuses that act on blinkers that are orthogonally offset by four cells, both of which are shown below. They both burn cleanly and have period 6.<ref>{{CiteSummersPattern|name=jslife|accessdate=May 27, 2009}}</ref> | ||
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==4c/5 | ==== 4c/5 orthogonal ==== | ||
The 4c/5 fuse burns through alternating blinkers with the same spacing as the 2c/3 fuses. It was reported by [[Hugh Thompson]] in {{year|1971}}.<ref>{{CiteLifeline|vol=4|pages=page 7}}</ref> | The 4c/5 fuse burns through alternating blinkers with the same spacing as the 2c/3 fuses. It was reported by [[Hugh Thompson]] in {{year|1971}}.<ref>{{CiteLifeline|vol=4|pages=page 7}}</ref> | ||
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==c/2 | ==== c/2 orthogonal ==== | ||
The c/2 blinker fuse burns cleanly through blinkers that are orthogonally offset by an even number of cells and has period 2x spacing. HWSS burns clearly through output of both Blinker Puffers 1 and 2 and front part of [[Blinker ship 1]].<ref name="hensel">[[Alan Hensel]]'s [http://www.ibiblio.org/lifepatterns/ lifep.zip pattern collection].</ref> It consists of a single [[heavyweight spaceship]] and is useful because it travels at the same speed as the known [[blinker puffer]]s, allowing for the construction of arbitrary-length [[spaceship]]s. Note that [[Coe ship]]'s side spark can also be used in cleanup. | The c/2 blinker fuse burns cleanly through blinkers that are orthogonally offset by an even number of cells and has period 2x spacing. HWSS burns clearly through output of both Blinker Puffers 1 and 2 and front part of [[Blinker ship 1]].<ref name="hensel">[[Alan Hensel]]'s [http://www.ibiblio.org/lifepatterns/ lifep.zip pattern collection].</ref> It consists of a single [[heavyweight spaceship]] and is useful because it travels at the same speed as the known [[blinker puffer]]s, allowing for the construction of arbitrary-length [[spaceship]]s. Note that [[Coe ship]]'s side spark can also be used in cleanup. | ||
{| | {| | ||
|{{EmbedViewer | |{{EmbedViewer | ||
|pname = blinkerfusec2 | |pname = blinkerfusec2 | ||
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==6c/13 | ==== 6c/13 orthogonal ==== | ||
The 6c/13 blinker fuse burns cleanly through blinkers that are orthogonally offset by six cells and has period 26.<ref name="hensel" /> It is most well-known for the role that it plays in [[blinker ship 1]], where the fact that it burns at a rate slower than c/2 is taken advantage of to create a [[growing spaceship]]. | The 6c/13 blinker fuse burns cleanly through blinkers that are orthogonally offset by six cells and has period 26.<ref name="hensel" /> It is most well-known for the role that it plays in [[blinker ship 1]], where the fact that it burns at a rate slower than c/2 is taken advantage of to create a [[growing spaceship]]. | ||
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==8c/21 | ==== 8c/21 orthogonal ==== | ||
Another blinker fuse which runs on the traffic light, similarly to the above fuse. | Another blinker fuse which runs on the traffic light, similarly to the above fuse. | ||
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==c/10 | ==== c/10 orthogonal ==== | ||
The c/10 blinker fuse burns cleanly through blinkers that are orthogonally offset. It consists of a single [[copperhead]] and can be used to create spaceships that grow very quickly. | The c/10 blinker fuse burns cleanly through blinkers that are orthogonally offset. It consists of a single [[copperhead]] and can be used to create spaceships that grow very quickly. | ||
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==Diagonal | === Diagonal === | ||
There is a diagonal blinker fuse involving a [[B-heptomino]] reacting with a line of blinkers. | There is a diagonal blinker fuse involving a [[B-heptomino]] reacting with a line of blinkers. | ||
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==See also== | == See also == | ||
*[[Hacksaw]] | * [[Hacksaw]] | ||
*[[Sawtooth 1163]] | * [[Sawtooth 1163]] | ||
==References== | == References == | ||
<references> | <references> | ||
<ref name="post119547">{{LinkForumThread | <ref name="post119547">{{LinkForumThread | ||
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</references> | </references> | ||
==External links== | == External links == | ||
{{LinkLexicon|lex_b.htm#blinkerfuse}} | {{LinkLexicon|lex_b.htm#blinkerfuse}} | ||
*[http://echochamber.me/viewtopic.php?f=17&t=39017 A pattern in the Game of Life] - Forum thread at xkcd.com | * [http://echochamber.me/viewtopic.php?f=17&t=39017 A pattern in the Game of Life] - Forum thread at xkcd.com | ||
{{Symmetry|orthogonal2}} | {{Symmetry|orthogonal2}} | ||
__NOTOC__ | __NOTOC__ | ||
Revision as of 11:45, 8 November 2022
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| Pattern type | Fuse | ||||||||
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| Period | 18 | ||||||||
| Speed | 2c/3 | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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A blinker fuse is any fuse that burns through a line of blinkers. Alternatively, it may refer to the 2c/3 period 18 fuse that burns cleanly through blinkers that are spaced four cells apart, shown to the right. This particular fuse can be combined with blinker puffer 1 to create various interesting patterns, such as moving sawtooth, slow puffer 1, and slow puffer 2.
House alone, attached to a blinker wick with spacing 4, is a predecessor to the fuse shown to the right.
Other blinker fuses
Orthogonal
2c/3 orthogonal
There are two other well-known 2c/3 blinker fuses that act on blinkers that are orthogonally offset by four cells, both of which are shown below. They both burn cleanly and have period 6.[1]
|
|
4c/5 orthogonal
The 4c/5 fuse burns through alternating blinkers with the same spacing as the 2c/3 fuses. It was reported by Hugh Thompson in 1971.[2]
|
c/2 orthogonal
The c/2 blinker fuse burns cleanly through blinkers that are orthogonally offset by an even number of cells and has period 2x spacing. HWSS burns clearly through output of both Blinker Puffers 1 and 2 and front part of Blinker ship 1.[3] It consists of a single heavyweight spaceship and is useful because it travels at the same speed as the known blinker puffers, allowing for the construction of arbitrary-length spaceships. Note that Coe ship's side spark can also be used in cleanup.
|
6c/13 orthogonal
The 6c/13 blinker fuse burns cleanly through blinkers that are orthogonally offset by six cells and has period 26.[3] It is most well-known for the role that it plays in blinker ship 1, where the fact that it burns at a rate slower than c/2 is taken advantage of to create a growing spaceship.
In January 2021, INoMed constructed an adjustable high-period 3c/7 orthogonal puffer that repeatedly ignites this fuse.[4]
|
8c/21 orthogonal
Another blinker fuse which runs on the traffic light, similarly to the above fuse.
|
c/10 orthogonal
The c/10 blinker fuse burns cleanly through blinkers that are orthogonally offset. It consists of a single copperhead and can be used to create spaceships that grow very quickly.
|
Diagonal
There is a diagonal blinker fuse involving a B-heptomino reacting with a line of blinkers.
|
Block and glider can engage in a similar reaction, forming a glide-reflective 2c/44 diagonal blinker fuse.[5]
|
See also
References
- ↑ Jason Summers' jslife pattern collection. Retrieved on May 27, 2009.
- ↑ Robert Wainwright (December 1971). Lifeline, vol 4, page 7.
- ↑ 3.0 3.1 Alan Hensel's lifep.zip pattern collection.
- ↑ iNoMed (January 19, 2021). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ C28 (April 21, 2021). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
External links
- Blinker fuse at the Life Lexicon
- A pattern in the Game of Life - Forum thread at xkcd.com