BTS: Difference between revisions
updated synthesis |
updated synthesis |
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|isorulemin = B/S2aek3nr | |isorulemin = B/S2aek3nr | ||
|isorulemax = B2in34-ainry5-jqr678/S012345678 | |isorulemax = B2in34-ainry5-jqr678/S012345678 | ||
|synthesis = | |synthesis = 10 | ||
|plaintext = true | |plaintext = true | ||
|rle = true | |rle = true | ||
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The BTS was first officially enumerated as a still life by [[Mark Niemiec]], but it was not until 2015 that [[Tanner Jacobi]] noticed (and somewhat popularized) its usefulness, due to its extensive appearances in results generated by [[Mike Playle]]'s [[Bellman]] program.<ref name="post18079" /> One example of the surprising number of ways to use this object as a [[catalyst]] for [[signal]] [[circuitry]] can be seen in the [[CC semi-cenark]] entry. | The BTS was first officially enumerated as a still life by [[Mark Niemiec]], but it was not until 2015 that [[Tanner Jacobi]] noticed (and somewhat popularized) its usefulness, due to its extensive appearances in results generated by [[Mike Playle]]'s [[Bellman]] program.<ref name="post18079" /> One example of the surprising number of ways to use this object as a [[catalyst]] for [[signal]] [[circuitry]] can be seen in the [[CC semi-cenark]] entry. | ||
On December 13, {{year|2020}}, [[MathAndCode]] found a {{gliders|10}} [[synthesis]] of this still life.<ref name="post115747" /> | |||
==References== | ==References== | ||
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|author = Tanner Jacobi | |author = Tanner Jacobi | ||
|date = March 19, 2015 | |date = March 19, 2015 | ||
}}</ref> | |||
<ref name="post115747">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Still Life Synthesis Thread | |||
|p = 115747 | |||
|author = MathAndCode | |||
|date = December 13, 2020 | |||
}}</ref> | }}</ref> | ||
</references> | </references> | ||
Revision as of 12:37, 15 December 2020
| BTS | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 19 | ||||||||
| Bounding box | 7 × 8 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Mark Niemiec | ||||||||
| Year of discovery | Unknown | ||||||||
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BTS, short for bookend-table-snake, is a 19-cell still life that can be used as a catalyst in a number of ways. Typically, only at least one of two specific cells of the bookend will ever die during a catalysis. The BTS is primarily used in a growing selection of non-Spartan Herschel conduits.
The BTS was first officially enumerated as a still life by Mark Niemiec, but it was not until 2015 that Tanner Jacobi noticed (and somewhat popularized) its usefulness, due to its extensive appearances in results generated by Mike Playle's Bellman program.[1] One example of the surprising number of ways to use this object as a catalyst for signal circuitry can be seen in the CC semi-cenark entry.
On December 13, 2020, MathAndCode found a 10-glider synthesis of this still life.[2]
References
- ↑ Tanner Jacobi (March 19, 2015). Re: Catalyst improvements WIP (discussion thread) at the ConwayLife.com forums
- ↑ MathAndCode (December 13, 2020). Re: Still Life Synthesis Thread (discussion thread) at the ConwayLife.com forums
External links
- BTS at the Life Lexicon
- BTS at Adam P. Goucher's Catagolue
- Nineteen-Bit Life Objects at Mark D. Niemiec's Life Page