Tumbler

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Tumbler
bo5bob$obo3bobo$o2bobo2bo$2bo3bo2b$2b2ob2o! #C [[ THEME 6 GRID GRIDMAJOR 0 THUMBLAUNCH AUTOSTART ]] #C [[ GPS 7 THUMBSIZE 2 HEIGHT 400 ]]
Pattern type Oscillator
Number of cells 16
Bounding box 9×7
Period 14
Mod 7
Heat 10.3
Volatility 1.00
Discovered by George Collins
Year of discovery 1970

The tumbler is the smallest known and first discovered period 14 oscillator and was found by George Collins in 1970.[1] It was the only known period 14 oscillator until the discovery of 44P14 on April 21, 1997.

Commonness

Tumbler is about the twenty-eighth most common naturally-occurring oscillator in Achim Flammenkamp's census, being less common than octagon 2 and unix but more common than tub test tube baby.[2]

Synthesis

In November 2014, Aidan F. Pierce found a predecessor for this pattern based on a soup from Adam P. Goucher's apgsearch script, which allowed for a 6-glider synthesis.[3]

See also

References

  1. "Class 2 Objects Catalog". Retrieved on April 11, 2009.
  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.

External links

  • Tumbler at Eric Weisstein's Treasure Trove of Life