Roteightor

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Roteightor
bo12b$b3o8b2o$4bo7bob$3b2o5bobob$10b2o2b2$6b2o6b$5b2obo5b$6b3o5b$2b2o 3b3o4b$bobo5b2o3b$bo7bo4b$2o8b3ob$12bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2 LOOP 8 THUMBSIZE 3 ZOOM 27 WIDTH 480 HEIGHT 480 ]]
Pattern type Oscillator
Number of cells 35
Bounding box 14 × 14
Period 8 (mod: 2)
Heat 11.0
Volatility 0.63 | 0.63
Kinetic symmetry nrk
Discovered by Robert Wainwright
Year of discovery 1972

Roteightor is a period-8 oscillator with 35 cells. It was discovered by Robert Wainwright in 1972.[1] It consists of four eater 1s hassling a fleet predecessor that resembles a standard spaceship of length 3, sometimes called an underweight spaceship (UWSS). It can also be extended as an agar, as noted by Dean Hickerson in January 1990, to make a family of oscillators called multiple roteightors.[2]

x = 32, y = 32, rule = B3/S23 20bo$8b2o8b3o$9bo7bo$9bobo5b2o$10b2o13bo$23b3o$4b2o8b3o5bo$5bo7bo2bo6b o$5bobo8bo2bo3bo6bo$6b2o2bo4bo2bo9b3o$9bo8bo2bo5bo$2o7bo2bo5b3o6b2o$bo 7b3o$bobo$2b2o20b3o$15b3o5bo2bo$6b3o5bo2bo8bo$5bo2bo8bo2bo4bo2b2o$8bo 2bo4bo2bo8bobo$3bo3bo2bo8bo2bo7bo$3bo6bo2bo5b3o8b2o$4bo5b3o$b3o20b2o$b o22bobo$8b2o6b3o7bo$9bo5bo2bo7b2o$6b3o9bo$6bo6bo3bo2b2o$13bo6bobo$14bo 7bo$11b3o8b2o$11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 Z 12 HEIGHT 480 GPS 2 AUTOSTART LOOP 8 ]]
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Etymology

The roteightor is period eight, the rotor appears to rotate, and in an extended roteightor with the underweight spaceships in their dense phases the UWSSs that touch resemble black eights.

See also

References

  1. Robert Wainwright (October 1972). Lifeline, vol 6, page 3.
  2. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.

External links