p50 traffic jam

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p50 traffic jam
x = 48, y = 16, rule = B3/S23 2o44b2o$o2b3o36b3o2bo$b2o30b3o9b2o$6bo18bo15bo$6bo3bo12b2ob2o3bo5bo3bo $b2o5b2ob2o12bo5bo5bo7b2o$o2b3o4bo20bo5bo4b3o2bo$2o44b2o$33b3o2$6bo2bo 28bo2bo$5bob2obo26bob2obo$6bo2bo28bo2bo$6bo2bo28bo2bo$5bob2obo26bob2ob o$6bo2bo28bo2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 ZOOM 10 LOOP 50 ]]
Pattern type Oscillator
Number of cells 92
Bounding box 48 × 18
Period 50
Mod 25
Heat 100.9
Volatility 0.91
Strict volatility 0.63
Discovered by Noam Elkies
Year of discovery 1994

p50 traffic jam is a period-50 oscillator discovered by Noam Elkies on October 16, 1994.[1] It works by hassling the 25-generation traffic jam reaction with two copies of fumarole and two copies of octagon 2. In terms of its 92 cells, it was the smallest known period-50 oscillator until May 2022, when the LCM oscillator 24P10 on 30P25 was found.[2] The version shown is the cis version, and by reflecting the right side it is possible to get a trans version with also 92 cells.

The traffic jam reaction gives off strong dot and obo! sparks. An example of the p50 traffic jam being used as a sparker, although at the generation before the spark, is shown below. Another example, but at a different period, is mentioned on the p44 traffic light hassler page. The period-50 glider gun used the p50 traffic jam in a different way before the much smaller 55P10 was discovered.

x = 59, y = 48, rule = B3/S23 9b2o4b2o25b2o4b2o$9bobo2bobo25bobo2bobo$11b4o29b4o$9bo2b2o2bo25bo2b2o 2bo$3b2o4bo2b2o2bo25bo2b2o2bo4b2o$2bo2bo5bo2bo29bo2bo5bo2bo$bo4bo45bo 4bo$o6bo43bo6bo$o6bo38bo4bo6bo$bo4bo39bobo3bo4bo$2bo2bo4b3o32bo3bo3bo 2bo$3b2o41bobo5b2o$8bo5bo32bo$8bo5bo$8bo5bo2$10b3o$34b2o$34b2o2$12bo8b 3o$11bobo7bobo$10bo3bo6bo2bo$11bobo8bobo9b3o9bo$12bo9b3o9bobo8bobo$34b o2bo6bo3bo$35bobo7bobo$35b3o8bo2$23b2o$23b2o$46b3o2$44bo5bo$44bo5bo$ 11bo32bo5bo$3b2o5bobo41b2o$2bo2bo3bo3bo32b3o4bo2bo$bo4bo3bobo39bo4bo$o 6bo4bo38bo6bo$o6bo43bo6bo$bo4bo45bo4bo$2bo2bo5bo2bo29bo2bo5bo2bo$3b2o 4bo2b2o2bo25bo2b2o2bo4b2o$9bo2b2o2bo25bo2b2o2bo$11b4o29b4o$9bobo2bobo 25bobo2bobo$9b2o4b2o25b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 AUTOSTART ZOOM 8 HEIGHT 540 ]]
p50 lumps of muck hassler, found by David Raucci on July 3, 2022
(click above to open LifeViewer)
RLE: here Plaintext: here

See also


  1. Dean Hickerson's oscillator stamp collection. Retrieved on June 25, 2009.
  2. David Raucci (May 28, 2022). p25, p102 and multiples (#3). GitHub commit to Skopje.

External links