Ark

An ark is a pair of mutually stabilizing switch engines. The most popular ark is Noah's ark.

Common seminatural arks

These occur often in D2_x and its supersets.

x = 21, y = 21, rule = B3/S23 12b2o$11b2obo$12bob2o$b2o10b2o$o2bo$bobo14bo$2bo14b3o$6b2o9bo2bo$6b2o 10b3o$19bo4$12b2o$bo10b2o$obo$bo$15b2o$5bo8bo2bo$4bobo8bobo$5bo10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 8 X 0 Y 0 WIDTH 840 HEIGHT 840 GPS 24 THEME Book GRID OFF CELLBORDERS AUTOSTART PAUSE 2 STEP 1 ]] #C [[ T 1200 X -12 Y 12 ZOOM 4 LINEAR ZOOM ]] #C [[ T 2928 X -156 Y 156 ZOOM 2 LINEAR ZOOM STEP 4 ]] #C [[ T 23664 X -1884 Y 1884 ]] #C [[ LOOP 23664 ]]

a predecessor for a period-2688 ark consisting of pairs of blocks, tubs, loaves and lumps of muck (click above to open LifeViewer) Catagolue: here

External links

• Ark at the Life Lexicon
• Double Switch Engine Puffers at Pentadecathlon