BTS: Difference between revisions
mNo edit summary |
No edit summary |
||
| Line 21: | Line 21: | ||
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. | ||
== Use as a catalyst == | |||
= | |||
{{EmbedViewer | {{EmbedViewer | ||
|pname = eaterbts | |pname = eaterbts | ||
| Line 31: | Line 28: | ||
|caption = BTS as [[ eater 1 ]] replacement<br/> | |caption = BTS as [[ eater 1 ]] replacement<br/> | ||
}} | }} | ||
==References== | |||
== [[List of common still lifes|Commonness]] == | |||
{{Needs occurrence info|type=still life}} | |||
== [[Glider synthesis]] == | |||
On December 13, {{year|2020}}, [[MathAndCode]] found a {{gliders|10}} [[synthesis]] of this still life.<ref name="post115747" /> | |||
== References == | |||
<references> | <references> | ||
<ref name="post18079">{{LinkForumThread | <ref name="post18079">{{LinkForumThread | ||
Revision as of 16:20, 24 December 2021
| BTS | |||||||||
| View static image | |||||||||
| Pattern type | Strict still life | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 19 | ||||||||
| Bounding box | 7 × 8 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Mark Niemiec | ||||||||
| Year of discovery | Unknown | ||||||||
| |||||||||
| |||||||||
| |||||||||
| |||||||||
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.
Use as a catalyst
| BTS as eater 1 replacement (click above to open LifeViewer) RLE: here Plaintext: here |
Information on this still life's commonness with respect to other naturally-occurring patterns is currently unknown.
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