Tub with tail

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Tub with tail
x = 5, y = 5, rule = B3/S23 bo$obo$bobo$3bo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]] [[ ZOOM 48 ]]
Pattern type Strict still life
Number of cells 8
Bounding box 5 × 5
Frequency class 15.8
Discovered by Charles Corderman
Hugh Thompson
Year of discovery 1971

Tub with tail (or twit, originally from the acronym) is an 8-cell still life discovered by Charles Corderman and Hugh Thompson in 1971.[1][2] It is notable for its use in eater 5.

This still life is comprised of the normally stable tub with a normally unstable tail attached.

Commonness

Main article: List of common still lifes

Tub with tail is the twenty-eighth most common still life in Achim Flammenkamp's census, being less common than very long boat but more common than very long ship.[3]

It is the 29th most common still life on Adam P. Goucher's Catagolue, being less common than very long boat but more common than mirrored table. It is the 6th most common still life with 8 cells, being less common than shillelagh but more common than canoe.[4]

Glider synthesis

All strict still lifes with a population of 21 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.

Tub with tail(s) family

Gallery

2bo$bobo$o2bo$b2o2b2o$5bobo$7bo$7b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 2 ]]
A fishhook turning into a tub with tail and back into a fishhook as it eats a loaf
(click above to open LifeViewer)

See also

References

  1. Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
  2. Robert Wainwright (June 1971). Lifeline, vol 2.
  3. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  4. Adam P. Goucher. "Statistics". Catagolue. Retrieved on May 5, 2023.

External links