Jolson
Jolson (also known as Al Jolson[note 1]) is a period-15 oscillator consisting of two blocks hassled by two pentadecathlons. It was found by Robert Wainwright in November 1984[1] and named by Bill Gosper.
| Jolson | |||||||||||
| |||||||||||
| View animated image | |||||||||||
| View static image | |||||||||||
| Pattern type | Oscillator | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 42 | ||||||||||
| Bounding box | 18×22 | ||||||||||
| Period | 15 | ||||||||||
| Mod | 15 | ||||||||||
| Heat | 47.9 | ||||||||||
| Volatility | 0.98 | ||||||||||
| Strict volatility | 0.98 | ||||||||||
| Discovered by | Robert Wainwright | ||||||||||
| Year of discovery | 1984 | ||||||||||
| |||||||||||
| |||||||||||
| |||||||||||
| |||||||||||
The hassling mechanism requires two domino sparks, constantly 3 generations apart, provided by sparkers of period 9 or above (e.g. Merzenich's p31). A period 9 version that uses two snackers is possible (see below), but p14 (with tetradecathlons) is impossible.[2]
Image gallery
 |
 One of the phases of Jolson, which led to its name |
Notes
- The name is a reference to Al Jolson, a famous American singer.
gollark: Not to be thingy, but those are mostly just somewhat hard to obtain diode laser setups, and vast quantities of work is going into actually designing and fabricating those.
gollark: Who is apparently doing better than said companies at what?
gollark: I don't think that's physically possible.
gollark: "Jesus" is under containment in Site 2-α.
gollark: I just want to arbitrarily orbitally laser strike locations.
References
- Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- Mark Niemiec (August 14, 2019). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
This article is issued from Conwaylife. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.