Block on griddle

Block on griddle (or singular flip flop) is a period-2 oscillator that was discovered by Robert Wainwright in July 1972.[1]

Block on griddle
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Pattern type Oscillator
Family Griddle
Number of cells 15
Bounding box 6×7
Frequency class 30.0
Period 2
Mod 1
Heat 6
Volatility 0.33
Strict volatility 0.33
Rotor type Flutter
Discovered by Robert Wainwright
Year of discovery 1972

Commonness

Block on griddle is about the thirty-sixth most common naturally-occurring oscillator in Achim Flammenkamp's census, being slightly less common than the cis-beacon down on long hook, approximately as common as the boat on spark coil, and more common than fore and back and 21P2.[2]

Synthesis

In October 2014, Ivan Fomichev found a 6-glider synthesis for this pattern based on a soup from Adam P. Goucher's apgsearch script.[3] A 5-glider synthesis was found in July 2020.[4]

gollark: I was going to do a thing, but then I forgot what the thing was, so now I have to work out what the thing is.
gollark: Technically, AutoBotRobot owns the server.
gollark: Oh dear.
gollark: I was interested in the pronouns bit, but it seems... fine, and not actually transphobic? He's just complaining about "they" and wants people to use different gender-neutral pronouns. Which is somewhat bee for other reasons, but meh.
gollark: `fork` is cool though, you can use it to cheat at some game things.

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. "Soup search results". Retrieved on November 9, 2014.
  4. Ian07 (July 18, 2020). Re: Randomly enumerating glider syntheses (discussion thread) at the ConwayLife.com forums
  • 15P2.28 at Heinrich Koenig's Game of Life Object Catalogs
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