Professor

Professor
x = 9, y = 11, rule = B3/S23 b2o3b2o$o2bobo2bo$2obobob2o$3bobo$2obobob2o$2obobob2o$3bobo$3bobo$2obo bob2o$o2bobo2bo$b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] #C [[ THUMBSIZE 3 ZOOM 24 ]]
View static image
Pattern type	Strict still life
Number of cells	46
Bounding box	9 × 11
Static symmetry	Unspecified
Discovered by	Adam P. Goucher
Year of discovery	2016
Rules Outer-totalistic rules B/S23 – B378/S012345678 # of rules 210 = 1024 Isotropic rules B/S2-cn3an – B1e2ikn34-int5-ekqr6-i78/S012345678
Glider synthesis Fewest gliders 9 Catagolue-generated RLE synthesis Uploaded synthesis RLE cismirroredprofessor_synth.rle
Pattern files Plaintext cismirroredprofessor.cells RLE cismirroredprofessor.rle
Identifiers apgcode xs46_69b88bb8b96z69d11dd1d96

Professor is a 46-bit still life consisting of two large islands (resembling a long⁴ clips) partially stabilizing each other and further stabilized by two blocks acting as induction coils.

The cis-mirrored variant of this still life occured naturally from an asymmetric soup on July 9, 2016, in a haul submitted to Catagolue by Adam P. Goucher. It was formerly the largest still life to appear naturally, until its title was taken in August by the 56-cell cloverleaf interchange. Additionally, an inflected version of professor which also has 46 cells appeared naturally in February 2019.

Variants

A number of variants are possible, depending on the alignment of the two halves and the position of the blocks:

x = 72, y = 14, rule = B3/S23 b2o3b2o9b2o3b2o9b2o13b2o14b2o$o2bobo2bo7bo2bobo2bo7bo2bo11bo2bo12bo2bo $2obobob2o7b2obobob2o7b2obo2b2o7b2obo2b2o8b2obo2b2o$3bobo13bobo13bobo 2bo9bobo2bo10bobo2bo$2obobob2o7b2obobo10b2obobob2o9bobob2o7b2obobob2o$ 2obobob2o7b2obobob2o7b2obobo9b2obobo10b2obobo$3bobo13bobob2o10bobob2o 6b2obobob2o10bobo$3bobo13bobo13bobob2o9bobob2o10bobob2o$2obobob2o7b2ob obob2o7b2obobo9b2obobo10b2obobob2o$o2bobo2bo7bo2bobo2bo7bo2bobo9bo2bob o10bo2bobo$b2o3b2o9b2o3b2o9b2o2bob2o7b2o2bob2o8b2o2bob2o$37bo2bo11bo2b o12bo2bo$38b2o13b2o14b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 15 WIDTH 1200 HEIGHT 400 COLOR LABEL Black ]] #C [[ LABEL 4 -3 8 "cis-mirrored" ]] #C [[ LABEL 20 -3 8 "trans-mirrored" ]] #C [[ LABEL 36 -3 8 "shift-mirrored" ]] #C [[ LABEL 51 -3 8 "cis-rotated" ]] #C [[ LABEL 67 -3 8 "trans-rotated" ]]

A collection of various professor isomers (click above to open LifeViewer) RLE: here Plaintext: here

See also

• Omnibus
• Cthulhu

External links

• Cis-mirrored professor at Adam P. Goucher's Catagolue