Bumper

A bumper is any one of several periodic color-preserving glider reflectors, most of which were discovered by Tanner Jacobi on 6 April 2016. Its repeat time is 34 generations.

At gen 11 or 12, a spark is needed. A dot spark can be used on gen 11 (such as from the blocker). The spark from the grin (such as from the Coe's p8) at gen 12 can also work; at gen 20, a glider and an R-pentomino is produced. The glider escapes, and the R is converted back to a loaf using an eater 1.

x = 20, y = 44, rule = B3/S23 13bo$13bobo$13b2o2$11b2o$4b2o4bo2bo$4b2o5bobo$4b2o6bo$5bo$4bobo9b2o$3b 2obo9bo$17b3o$19bo$4b2o$4b2o14$13bo$13bobo$13b2o2$5b2o4b2o$5b2o3bo2bo$ 11bobo$12bo$5bo$4b3o9b2o$2b2ob2o9bo$bo2bo12b3o$4bo14bo2$o2bo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART THUMBSIZE 2 GPS 7 ZOOM 10 HEIGHT 800 PAUSE 2 T 11 PAUSE 2 T 12 PAUSE 2 T 20 PAUSE 2 LOOP 41 ]]

(click above to open LifeViewer) RLE: here Plaintext: here

The bumper reaction's spark can support another bumper, as shown below:

x = 75, y = 73, rule = B3/S23 72bo$72bobo$72b2o3$58bo$57bo$57b3o4$43bo$43bobo$43b2o5$7b2o$2b2o2bobo$ 2bo3bo$3b3ob4o$5bobo2bo5bo$b3o2bo7b3o$o2b2o8bo$2o11b2o6bo27b2o$20bobo 16b2o7bo2bo$20bobo6b2o7bo2bo7bobo$9b3o9bo6bo2bo7bobo8bo$8b6o15bobo8bo$ 9bo2bo17bo23b2o$4b2o4b2o7b2o23b2o8bo$3bobo12bo2bo12b2o8bo10b3o$3bo15b 2o13bo10b3o9bo$2b2o31b3o9bo$8b2o9bo17bo$8b2o8bobo$5bo5b2o$3b3o5bo2b2o 5bo$2bo7bo3b3o$bob3o3bo2b2o2bo$bobo2bo3bobo7bo$2o2b2o10b2obo5bo$2bobo 12b3o4bobo$2bobo13b2o5b2o$3bo10bo4bo10bo$7b2o5b2o13bobo$7bobo4b3o12bob o$8bo5bob2o10b2o2b2o$13bo7bobo3bo2bobo$17bo2b2o2bo3b3obo$17b3o3bo7bo$ 12bo5b2o2bo5b3o$21b2o5bo$13bobo8b2o$14bo9b2o$30b2o$30bo$28bobo$22b2o4b 2o$21bo2bo$20b6o$22b3o3$19b2o11b2o$20bo8b2o2bo$17b3o7bo2b3o$17bo5bo2bo bo$23b4ob3o$27bo3bo$25bobo2b2o$25b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 600 WIDTH 600 THUMBSIZE 2 ZOOM 6 GPS 20 AUTOSTART T 0 PAUSE 2 T 164 PAUSE 1 LOOP 165 ]]

The leftmost bumper is supported by a spark from the p41 pi-heptomino hassler with "hive five" attachment, and two more bumpers are chained on the right (click above to open LifeViewer)

See also

• p3, p4, p5, p6, p7, p8, p9, p11, and p15 bumpers
• Bouncer
• Bumper and bouncer gallery

External links

• Bumper at the Life Lexicon