Snorkel loop: Difference between revisions
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== Commonness == | == Commonness == | ||
Snorkel loop is the eighty-third [[List of common still lifes|most common still life]] in [[Achim Flammenkamp's census]], being less common than [[beehive on table]] but more common than [[trans-barge with tail]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> It is | Snorkel loop is the eighty-third [[List of common still lifes|most common still life]] in [[Achim Flammenkamp's census]], being less common than [[beehive on table]] but more common than [[trans-barge with tail]].<ref>{{citeAchim|accessdate=January 15, 2009}}</ref> | ||
It is the 83rd [[List of common still lifes|most common still life]] on [[Adam P. Goucher]]'s [[Catagolue]], being less common than [[boat tie eater tail]] but more common than [[beehive on table]]. It is the 10th most common still life with 12 cells, being less common than [[boat tie eater tail]] but more common than [[beehive on table]].<ref>{{citeCatagolueStats|May 4, 2023}}</ref> | |||
There are two collisions in the [[octo3obj database]] with a snorkel loop in the ash.{{refn|Headerless RLEs of the collisions are {{headerlessRLE|3b2o3b2o$3b2o3b2o2$8b2o$4b2o2b2o$4b2o2$2o6b2o$2o2b2ob2o$4b2o3bo!}} and {{headerlessRLE|4b2ob2o$4b2ob2o$2o$2o3$b2o$b2o2b2ob2o$5b2ob2o$bo$2o$obo!}}}} | There are two collisions in the [[octo3obj database]] with a snorkel loop in the ash.{{refn|Headerless RLEs of the collisions are {{headerlessRLE|3b2o3b2o$3b2o3b2o2$8b2o$4b2o2b2o$4b2o2$2o6b2o$2o2b2ob2o$4b2o3bo!}} and {{headerlessRLE|4b2ob2o$4b2ob2o$2o$2o3$b2o$b2o2b2ob2o$5b2ob2o$bo$2o$obo!}}}} | ||
Revision as of 23:24, 4 May 2023
| Snorkel loop | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 12 | ||||||||
| Bounding box | 6 × 5 | ||||||||
| Frequency class | 21.3 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Robert Wainwright Everett Boyer | ||||||||
| Year of discovery | 1973 | ||||||||
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- Not to be confused with Twelve loop.
Snorkel loop is a 12-cell still life. It can be interpreted as a claw with an attached hooked tail.
Glider synthesis
A snorkel loop can be constructed with four gliders; known alternate syntheses are available in Mark Niemiec's database.[1]
| A 4G synthesis (click above to open LifeViewer) |
Commonness
Snorkel loop is the eighty-third most common still life in Achim Flammenkamp's census, being less common than beehive on table but more common than trans-barge with tail.[2]
It is the 83rd most common still life on Adam P. Goucher's Catagolue, being less common than boat tie eater tail but more common than beehive on table. It is the 10th most common still life with 12 cells, being less common than boat tie eater tail but more common than beehive on table.[3]
There are two collisions in the octo3obj database with a snorkel loop in the ash.[4]
See also
References
- ↑ The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-113.rle)
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on May 4, 2023.
- ↑ Headerless RLEs of the collisions are 3b2o3b2o$3b2o3b2o2$8b2o$4b2o2b2o$4b2o2$2o6b2o$2o2b2ob2o$4b2o3bo! and 4b2ob2o$4b2ob2o$2o$2o3$b2o$b2o2b2ob2o$5b2ob2o$bo$2o$obo!
External links
- Snorkel loop at Adam P. Goucher's Catagolue
- 12.34 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 21
- Natural periodic objects
- Periodic objects with minimum population 12
- Patterns with 12 cells
- Patterns found by Robert Wainwright
- Patterns found by Everett Boyer
- Patterns found in 1973
- Patterns that can be constructed with 4 gliders
- Still lifes
- Strict still lifes
- Strict still lifes with 12 cells