Very long ship: Difference between revisions
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Undo revision 81669 by GUYTU6J (talk) Partial revert. Generation 7 (or 6 if you ignore sparks) is where the predecessors converge. A very long ship formed this way always goes through generations 7-17. Tag: Undo |
dirty 3-glider collision |
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==Synthesis== | ==Synthesis== | ||
On March 28, {{year|2007}} [[Dean Hickerson]] found a {{gliders|4}} [[synthesis]] of this still life.<ref>Dean Hickerson's [http://radicaleye.com/DRH/syntheses.html 2, 3, and 4-glider syntheses] pattern collection</ref> | On March 28, {{year|2007}}, [[Dean Hickerson]] found a {{gliders|4}} [[synthesis]] of this still life.<ref>Dean Hickerson's [http://radicaleye.com/DRH/syntheses.html 2, 3, and 4-glider syntheses] pattern collection</ref> | ||
A 3-glider collision exists that produces a very long ship along with a lot of junk, formed via a glider hitting a [[bullet heptomino]]. | |||
<ref>{{LinkForumThread | |||
|format = ref | |||
|p = 136680 | |||
|title =Re: Small Spaceship Syntheses | |||
|author = MathAndCode | |||
|date =October 16, 2021 <!--UTC--> | |||
}}, second code block, top row, second from left, unintentional</ref> | |||
==References== | ==References== | ||
Revision as of 12:37, 16 October 2021
| Very long ship | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 10 | ||||||||
| Bounding box | 5 × 5 | ||||||||
| Frequency class | 15.6 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Unknown | ||||||||
| Year of discovery | Unknown | ||||||||
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Very long ship (or long long ship) is the long long version of the ship.
It is the twenty-ninth most common still life in Achim Flammenkamp's census, being less common than tub with tail but more common than table and table.[1] It is also the thirty-fourth most common object on Adam P. Goucher's Catagolue.[2]
It is about one-fifth as common as the long ship but almost 2,000 times as common as the long^3 ship.
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Synthesis
On March 28, 2007, Dean Hickerson found a 4-glider synthesis of this still life.[3]
A 3-glider collision exists that produces a very long ship along with a lot of junk, formed via a glider hitting a bullet heptomino. [4]
References
- ↑ 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 June 24, 2016.
- ↑ Dean Hickerson's 2, 3, and 4-glider syntheses pattern collection
- ↑ MathAndCode (October 16, 2021). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums , second code block, top row, second from left, unintentional
External links
- Long long ship at the Life Lexicon
- The 25 ten-bit still-lifes at Mark D. Niemiec's Life Page
| Vessels | |
|---|---|
| No corners (barges) | (^-2) • (^-1) • ^0 • ^1 • ^2 • ^3 |
| One corner (boats) | (^-2) • (^-1) • ^0 • ^1 • ^2 • ^3 |
| Two corners (ships) | (^-1) • ^0 • ^1 • ^2 • ^3 |