Grin reagent

Grin reagent
x = 13, y = 11, rule = B3/S23 11b2o$4b2ob2o2bo$5bobobobo$2obobo3bob2o$ob2ob2o2bo$4bo2bobob2o$4bob2ob ob2o$5bo2bo$6bo$3b3o$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ GPS 2 THUMBSIZE 2 ]]
View static image
Pattern type	Strict still life
Number of cells	42
Bounding box	13 × 11
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B/S23 – B3678/S012345678 # of rules 211 = 2048 Isotropic rules B/S2-n3-eij – B2in34ceqtyz5acin678/S012345678
Pattern files Plaintext grinreagent.cells RLE grinreagent.rle
Identifiers apgcode xs42_3iab8bbgz0d5km9b42sgzx65

Grin reagent is a catalyst that is extremely sensitive to a grin, and will react to it to create another grin. This allows a p12 oscillator to be made:

x = 32, y = 32, rule = B3/S23 18b2o$19bo$18bo$12b2o4b2o$13bo2b2o3bo$13bobo2b4o$14bobobo$16bob4o$15bo 2bo2bo$11b2o2bob4o$4b2ob2o2bo$5bobobobo4b2ob4o$2obobo3bob2o3b2obo2bo5b o$ob2ob2o2bo16b3o$4bo2bobob2o12bo$4bob2obob2o2b2o5b2o2bo$5bo2bo5bo2bo 2bo3b2obo$6bo12bo2bobo2bo$3b3o8bo5bobo2b2ob2obo$3bo5bo2bo3bo2b2obo3bob ob2o$9b5obo4bobobobo$20bo2b2ob2o$11b5o3b2o$10bo5bo$10b2o2b2o$13bobobo$ 10b4o2bobo$10bo3b2o2bo$12b2o4b2o$13bo$12bo$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME 6 AUTOSTART GPS 3 LOOP 12 ZOOM 12 HEIGHT 480 THUMBLAUNCH THUMBSIZE 2 ]]

P12 oscillator (Catagolue: here) (click above to open LifeViewer) RLE: here Plaintext: here

A similar reaction can also be achieved with the eater bridge eater, but its fast recovery time disallows a P12 oscillator, and also disallows period-multiplying reactions like the one shown in 65P48 weld.

The name of this object uses "reagent" in a nonstandard way. A stable structure that recovers without permanent damage after an interaction is more commonly called a catalyst. By a similar analogy to chemistry, reagents in Life are usually active reactions that assist in converting another object from one form to another, but are used up in the process.

External links

• Grin reagent at Adam P. Goucher's Catagolue