Airforce

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Airforce
x = 14, y = 15, rule = B3/S23 7bo6b$6bobo5b$7bo6b2$5b5o4b$4bo5bob2o$3bob2o3bob2o$3bobo2bobo3b$2obo3b 2obo3b$2obo5bo4b$4b5o5b2$6bo7b$5bobo6b$6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 1 LOOP 7 THUMBSIZE 3 WIDTH 480 HEIGHT 480 ]]
Pattern type Oscillator
Oscillator type Billiard table
Number of cells 42
Bounding box 14 × 15
Period 7
Mod 7
Heat 2.9
Volatility 0.20
Strict volatility 0.20
Discovered by David Buckingham
Year of discovery 1972

Airforce is a period-7 billiard table oscillator discovered by David Buckingham in 1972.[1][2] The rotor consists of two copies of the rotor of burloaferimeter and resembles an aircraft carrier in one phase.

Goldtiger997 found a 85-glider synthesis for this oscillator on March 7, 2020.[3]

A stator variant of airforce has occurred semi-naturally.

x = 31, y = 32, rule = B3/S23 16b6ob3ob2o$16bobobo5bo2bo$18b2ob2o3b2o$15bobob2o3bobobo$19b4obob4o$ 15bobo5b4obo$18b2ob2ob3o3bo$15bob2obob3o2bo2bo$15b5o3b2o2b2obo$15b3obo 2bo2bob3o$15bob2o2b6o3bo$20bo3bo4bo$15bo3bob5ob2obo$15bo3b8o$17bo2bobo 4bobo$16bo4b4obo2bo$bo2bob4o4bo$bobo4bobo2bo$4b8o3bo$ob2ob5obo3bo$bo4b o3bo$o3b6o2b2obo$b3obo2bo2bob3o$ob2o2b2o3b5o$o2bo2b3obob2obo$o3b3ob2ob 2o$2bob4o5bobo$b4obob4o$2bobobo3b2obobo$3b2o3b2ob2o$bo2bo5bobobo$2b2ob 3ob6o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 20 THUMBSIZE 2 ZOOM 8 ]]
The soup that created the airforce variant
(click above to open LifeViewer)

References

  1. Robert Wainwright (March 1973). Lifeline, vol 9, page 3.
  2. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  3. Goldtiger997 (March 7, 2020). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

External links