p3 bumper

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p3 bumper
x = 59, y = 52, rule = B3/S23 58bo$56b2o$57b2o7$49bo$47b2o$48b2o14$3o29bo$o31bobo$bo30b2o7$9b3o11bo$ 9bo13bobo$10bo12b2o2$2bo$2b3o$5bo$4b2o2$6b2obo6b2o$6bo4bo3bo2bo$7b2o2b o4bobo$7bo3bo5bo$8bo$8bob2obo7b2o$12bo8bo$12bo9b3o$24bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 3 ZOOM 15 WIDTH 800 HEIGHT 600 X -12 Y 9 GPS 12 AUTOSTART LOOP 99 ]]
Pattern type Reflector
Oscillator
Number of cells 38
Bounding box 23 × 14
Angle 90°
Period 3
Heat Unknown
Colour Colour-preserving
Discovered by Arie Paap
Tanner Jacobi
Year of discovery 2018

p3 bumper is a variant of Tanner Jacobi's bumper found by Arie Paap in April 2018.[1][2] It has a repeat time of 36 ticks, and the timing of the output glider is different from the stable Snark reflector, making it useful for rephasing periodic glider streams.

The form shown in the infobox uses a 24-cell p3 oscillator[3] and has a smaller population. This variant was used in a 152-cell p57 bumper loop,[4] the formerly smallest period-57 oscillator, as well as the smallest p69, p81 and p129 ones. All of these have been superseded by 146-cell glider shuttles with a new mechanism.[5]

x = 44, y = 44, rule = B3/S23 14bo$14b3o$17bo7b3o$16b2o11bo$26bo2bobo2$12b2o8b2o3b4obo$12bo9bo5b3o2b o$10bobo8bo9bo$10b2o9b2o8bo2bo$7b2o25bo$5b2obo24bo$3b2obo27b3o$8bo27bo $3bo$3bob3o34b2o$b2o39bo$3bo36bobo$40b2o$6bobo$6bo2bo$5bo2b2o$34b2o2bo $34bo2bo$35bobo$2b2o$bobo36bo$bo39b2o$2o34b3obo$40bo$7bo27bo$7b3o27bob 2o$10bo24bob2o$9bo25b2o$9bo2bo8b2o9b2o$12bo9bo8bobo$10bo2b3o5bo9bo$11b ob4o3b2o8b2o2$12bobo2bo$14bo11b2o$16b3o7bo$27b3o$29bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 17 ZOOM 10 HEIGHT 500 THEME Book STARTFROM 57 ]]
152-cell p57 bumper loop
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RLE: here Plaintext: here
Catagoluehere

Variants

An alternative form[6] of the period-3 sparker based on the caterer is shown below to the left. For bounding box optimization purposes, it is also possible to replace the eater 1 with a 33P3.1, saving one row along the south edge at the cost of a higher population, as shown to the right. This also works with a p6 bumper, p9 bumper, or p15 bumper.

x = 59, y = 54, rule = B3/S23 58bo$56b2o$57b2o7$49bo$47b2o$48b2o14$3o29bo$o31bobo$bo30b2o7$9b3o11bo$ 9bo13bobo$10bo12b2o7$9bo6b2o$4b4o3bo3bo2bo$7bo3bo4bobo$11bo5bo$8bo$4b 2obo2b2obo7b2o$4bob2obob2obo6bo$8bobo2b2o7b3o$5b3o3bo12bo$5bo2b3o$8bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 HEIGHT 480 X -12 Y 9 GPS 12 AUTOSTART LOOP 99 ]]
p3 bumper with an alternative p3 sparker
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RLE: here Plaintext: here
x = 59, y = 51, rule = B3/S23 58bo$56b2o$57b2o7$49bo$47b2o$48b2o14$3o29bo$o31bobo$bo30b2o7$9b3o11bo$ 9bo13bobo$10bo12b2o2$2bo$2b3o20bo$5bo18bobo3bo$4b2o18bobo2bobo$25bo3bo bo$6b2obo6b2o12bo$6bo4bo3bo2bo7b4o$7b2o2bo4bobo$7bo3bo5bo7b3o$8bo19bo$ 8bob2obo7b2o3bobo$12bo8bo2bobobobo$12bo9b2o5b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 HEIGHT 480 X -12 Y 9 GPS 12 AUTOSTART LOOP 99 ]]
p3 bumper with 33P3.1
(click above to open LifeViewer)
RLE: here Plaintext: here


References

  1. Arie Paap (April 4, 2018). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
  2. Arie Paap (April 6, 2018). Re: Execution of Old Guns by Variable-Speed Firing Squad (discussion thread) at the ConwayLife.com forums
  3. xp3_y2gg0c871zwq2hjg5z112 at Adam P. Goucher's Catagolue
  4. Entity Valkyrie (October 26, 2018). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  5. Jeremy Tan (January 23, 2022). "p3 bumper loops replaced by 22hd reflectors". GitHub. Retrieved on June 3, 2022.
  6. xp3_2226g10ez3pabkilb256zy01 at Adam P. Goucher's Catagolue

External links