Blocker

Blocker is a period-8 oscillator found by Robert Wainwright.[1] It is a useful dot sparker consisting of two blocks hassling an unnamed object which is a dying spark. It reappears half way through its cycle rotated through 180 degrees.

Blocker
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Pattern type Oscillator
Number of cells 15
Bounding box 10×5
Frequency class 27.2
Period 8
Mod 4
Heat 9
Volatility 0.89
Strict volatility 0.89
Discovered by Robert Wainwright
Year of discovery Unknown

Blockers can also be infinitely connected by "sharing" blocks, as long as adjacent reactions are no more than one phase apart. They can also be connected with Coe's p8, which uses blocks as hasslers in a similar manner.

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Blockers sharing blocks (click above to open LifeViewer)
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Commonness

Blocker is about the sixteenth most common naturally-occurring oscillator in Achim Flammenkamp's census, being less common than mazing but more common than jam.[2] On Catagolue, it is the second most common period 8 oscillator, being less common than the figure eight but more common than Coe's p8.[3]

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gollark: ++list_deleted moon
gollark: The Moon, however, is *not* real.
gollark: JOEK! Obviously the earth is real and no-earthers are ridiculous.
gollark: That person is really working for the government, trying to discredit the no-planeists to cast doubt on the (correct) no-earthers.

See also

References
  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  3. Adam P. Goucher. "Statistics". Catagolue. Retrieved on October 27, 2018.
  • 15P8.1 at Heinrich Koenig's Game of Life Object Catalogs
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