Period-50 glider gun

Period-50 glider gun is an extensible true period-50 glider gun discovered by Dean Hickerson on October 13, 1996. It is based on a period-44 gun by David Buckingham and the p50 traffic jam oscillator to restore the blinker, as well as 2 copies of this mechanism to restore the blinker in the middle. It can be made to have more than 1 barrel. [1]

Period-50 glider gun
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 144, y = 46, rule = B3/S23 32b2o6b2o60b2o6b2o$26bob2obobo6bobob2obo48bob2obobo6bobob2obo$26b2obob o10bobob2o48b2obobo10bobob2o$30b2o10b2o56b2o10b2o$31bo10bo58bo10bo$51b 2o6b2o22b2o6b2o$33b2o4b2o10b2o6b2o22b2o6b2o10b2o4b2o$34bo4bo64bo4bo$ 30bo3bo4bo3bo56bo3bo4bo3bo$7b2o20bo4bo4bo4bo6b3o4b3o38bo4bo4bo4bo20b2o $6bo2bo19bo3bo2b2o2bo3bo8bo4bo40bo3bo2b2o2bo3bo19bo2bo$5bo4bo19bo3bob 2obo3bo7b2o6b2o39bo3bob2obo3bo19bo4bo$4bo6bo21bo6bo62bo6bo21bo6bo$4bo 6bo120bo6bo$5bo4bo122bo4bo$6bo2bo32b2o24b2o4b2o24b2o32bo2bo$7b2o4bo23b o4b2o24b2o4b2o24b2o7bo25b2o$13bo8bo14bo71bo8bo$2ob2o8bo8bo14bo46b2o4b 2o17bo8bo20b2ob2o$o21bo21bo7b2o4b2o7bo14b2obo4bob2o24bo12bo11bo$b2o2bo 3b3o3b3o15b3o3b5ob2o5b3o2b3o5b2ob5o9b2o8b2o11b3o3b3o15b2o7bo2b2o$2b3o 13b3o3b3o17bo7b2o4b2o7bo14b2obo4bob2o20b3o3b3o8bo7b3o$2b3o8bo23bo46b2o 4b2o17bo29b3o$b2o2bo7bo8bo14bo71bo8bo19bo2b2o$o12bo8bo14bo4b2o24b2o4b 2o24b2o7bo8bo24bo$2ob2o17bo19b2o24b2o4b2o24b2o16bo20b2ob2o3$33bo6bo62b o6bo$30bo3bob2obo3bo15b3o38bo3bob2obo3bo$29bo3bo2b2o2bo3bo12b2o3bo36bo 3bo2b2o2bo3bo$29bo4bo4bo4bo17bo36bo4bo4bo4bo$30bo3bo4bo3bo5b2o10b2o37b o3bo4bo3bo$34bo4bo10bo6bo2bo43bo4bo$33b2o4b2o6b3o8b3o22b2o6b2o10b2o4b 2o$47bo20b2o13b2o6b2o$31bo10bo25bobo30bo10bo$30b2o10b2o8b2o16bo29b2o 10b2o$26b2obobo10bobob2o4b2o16b2o24b2obobo10bobob2o$26bob2obobo6bobob 2obo48bob2obobo6bobob2obo$32b2o6b2o60b2o6b2o2$54b2o$53bobo$53bo$52b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] <nowiki>#C [[ ZOOM 3.5 AUTOSTART OFF ]]</nowiki> <html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> <html></noscript></canvas></div></html>
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Pattern type Gun
Number of cells 524
Bounding box 144×46
Period 50
Barrels 1
Discovered by Dean Hickerson
Year of discovery 1996

In 2004, David Bell, produced a variant using only a single oscillator with a glider loop.[1] It is possible to restore the blinker by using queen bee shuttles but that makes this gun pseudo. The true period would then be p150. WIth the discovery of 55P10 in 2018, the true period-50 gun was vastly reduced.[2]

Animation of variant by David Bell. RLE: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 80, y = 39, rule = B3/S23 18b2o40b2o$18bobob2o32b2obobo$20bob2o32b2obo$19bo40bo$20bob2o11b2o6b2o 11b2obo$23bo11b2o6b2o11bo$23bobo28bobo$24b2o28b2o$13b2o3b2o40b2o3b2o$ 13bo5bo40bo5bo$6b2o64b2o$7bo6bo3bo42bo3bo6bo$b2ob3o8b3o44b3o8b3ob2o$b 2obo70bob2o$26b2o24b2o$b3o22b2o24b2o22b3o$o2bo4bobo58bobo4bo2bo$2o6bo 2bo24b2o4b2o24bo2bo6b2o$11b2o11bo10bobo4bobo10bo11b2o$9bo3b2o9bo10bo8b o10bo9b2o3bo$11b2o11bo10bobo4bobo10bo11b2o$8bo2bo24b2o4b2o24bo2bo$8bob o58bobo$26b2o24b2o$26b2o24b2o$31b2o$15b3o13bo30b3o$14bo3bo8b2o3bo28bo 3bo$27bo2bobo$13bo5bo9b2o2b2o25bo5bo$13b2o3b2o10bo3bo25b2o3b2o$7b2o19b o4bo37b2o$7bobo18b2o3b2o4bo30bobo$9bo28bobo29bo$9b2obo26bo11bo15bob2o$ 13bo35bobo14bo$9b2obo37b2o15bob2o$9b2obobo50bobob2o$13b2o50b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 HEIGHT 360 THEME 6 GPS 25 LOOP 150 ZOOM 6 AUTOSTART ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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The blinker is pushed by the queen bee
shuttles in a way that makes this
a pseudo-period gun.
(click above to open LifeViewer)
RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 56, y = 33, rule = B3/S23 23b2o6b2o$6bo16b2o6b2o16bo$5bobo40bobo$5bobo40bobo$ob2obob2o38b2obob2o bo$2obobo3bo36bo3bobob2o$5bob2o38b2obo$4bo3bo38bo3bo$4b4o40b4o$7bo40bo $4b4o6b2o24b2o6b4o$3bo10b2o24b2o10bo$4b6o36b6o$9bo14b2o4b2o14bo$6b4o 13bobo4bobo13b4o$6bo3bo11b2o8b2o11bo3bo$7bob2o12bobo4bobo12b2obo$2b2ob obo3bo12b2o4b2o12bo3bobob2o$2bob2obob2o34b2obob2obo$7bobo4b2o24b2o4bob o$7bobo4b2o24b2o4bobo$8bo10b2o26bo$19bo$15b2o3bo$15bo2bobo$17b2o2b2o$ 18bo3bo$16bo4bo$16b2o3b2o4bo$26bobo$27bo10bo$39b2o$38b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 HEIGHT 320 WIDTH 480 ZOOM 8 AUTOSTART LOOP 50 GPS 25 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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Period-50 glider gun using 55P10 (click above to open LifeViewer)
RLE: here Plaintext: here
gollark: Well, if you convert it to a video then the video itself is smaller, because video codecs/formats are... actually optimized for videos; GIFs are not.
gollark: I also have this fun AV1 version with no benefits whatsoever and a white background.
gollark: You can only compress to a certain point with a given format without losing quality.
gollark: I did *try* and encode it with a transparent background.
gollark: Who knows, then.

References
  1. Jason Summers (December 30, 2012). "Pattern Collections, jslife/osc". Retrieved on February 22, 2017.
  2. Tanner Jacobi (March 22, 2019). Re: Execution of Old Guns by Variable-Speed Firing Squad (discussion thread) at the ConwayLife.com forums
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