Blinker fuse

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Blinker fuse
#C A period 18 blinker fuse which travels at 2c/3. x = 45, y = 5, rule = B3/S23 2o2bob2o$5obobo$8bob3ob3ob3ob3ob3ob3ob3ob3ob3o$5obobo$2o2bob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Pattern type Fuse
Period 18
Speed 2c/3
Discovered by Unknown
Year of discovery Unknown

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.

Note

House alone, attached to a blinker wick with spacing 4, is a predecessor to the fuse shown to the right.

Other 2c/3 blinker fuses

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]

Longer version of the House-based blinker fuse, with shorter period
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Another blinker fuse ("bomb")
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4c/5 fuse

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]

The 4c/5 blinker fuse
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c/2 fuse

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.

The heavyweight spaceship blinker fuse
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6c/13 fuse

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]

The 6c/13 blinker fuse
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8c/21 fuse

Another blinker fuse which runs on the traffic light, similarly to the above fuse.

The 8c/21 blinker fuse
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c/10 fuse

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 copperhead blinker fuse
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Diagonal blinker fuses

There is a diagonal blinker fuse involving a B-heptomino reacting with a line of blinkers.

The diagonal blinker fuse
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Block and glider can engage in a similar reaction, forming a glide-reflective 2c/44 diagonal blinker fuse.[5]

See also

References

  1. Jason Summers' jslife pattern collection. Retrieved on May 27, 2009.
  2. Robert Wainwright (December 1971). "Lifeline Volume 4". Lifeline page 7.
  3. 3.0 3.1 Alan Hensel's lifep.zip pattern collection.
  4. iNoMed (January 19, 2021). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  5. C28 (April 21, 2021). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums

External links