Cis-boat trans-line tub

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Cis-boat trans-line tub
x = 7, y = 7, rule = B3/S23 bo$obo$2obo$3bo$3bobo$4bobo$5bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
Pattern type Strict still life
Number of cells 12
Bounding box 7 × 7
Frequency class 26.8
Static symmetry Unspecified
Discovered by Robert Wainwright
Everett Boyer
Year of discovery 1973

Cis-boat trans-line tub is a 12-cell still life.

This still life is comprised of a normally stable tub and a normally stable boat connected by a line. This is one of two possible isomers, named cis due to the corner part of the boat being closer to the line; the other isomer, trans-boat trans-line tub, has this corner part facing outwards.

The closely related pattern "boat cis-line tub" is an induction coil, in much the same way as the integral is a still life whereas the house is an induction coil. Note that there is only one valid isomer for the cis-line arrangement, analogous to trans-boat trans-line tub, as the cis- arrangement would cause unwanted birth between the boat and tub.

Among the 121 still lifes with 12 cells, this is the 32nd most common still life according to Catagolue.

Gallery

x = 4, y = 7, rule = B3/S23 bo$obo$bobo$3bo$bobo$obo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ]]
boat cis-line tub induction coil

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RLE: here Plaintext: here

Glider synthesis

All strict still lifes with a population of 22 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 31 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.

See also

External links