Difference between revisions of "Jolson"

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'''Jolson''' (also known as '''Al Jolson''') is a [[period]] [[:Category:Oscillators with period 15|15]] [[oscillator]] consisting of two [[block|blocks]] hassled by two [[pentadecathlon|pentadecathlons]]. It was found by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]] in November [[:Category:Patterns found in 1984|1984]] and named by [[:Category:Patterns found by Bill Gosper|Bill Gosper]]. A period [[:Category:Oscillators with period 9|9]] version that uses two [[snacker]]s instead of pentadecathlons is also possible (see below), but p14 (by hitting the sides of the pentadecathla with [[34P14 shuttle]]s) is not possible. It is not possible to create a period 45 version by using one snacker and one pentadecathlon, however, as the [[spark]]s must be both present at the same time when hassling.
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'''Jolson''' (also known as '''Al Jolson''') is a [[period]] [[:Category:Oscillators with period 15|15]] [[oscillator]] consisting of two [[block|blocks]] hassled by two [[pentadecathlon|pentadecathlons]]. It was found by [[:Category:Patterns found by Robert Wainwright|Robert Wainwright]] in November [[:Category:Patterns found in 1984|1984]] and named by [[:Category:Patterns found by Bill Gosper|Bill Gosper]]. A period [[:Category:Oscillators with period 9|9]] version that uses two [[snacker]]s instead of pentadecathlons is also possible (see below), but a p14 (by hitting the sides of the pentadecathlon with [[34P14 shuttle]]s) is not possible. It is not possible to create a period 45 version by using one snacker and one pentadecathlon, however, as the [[spark]]s must be both present at the same time when hassling.
  
 
==Image gallery==
 
==Image gallery==

Revision as of 15:04, 10 May 2019

Jolson
x = 13, y = 19, rule = B3/S23 b2o6b2o$o2bo4bo2bo$o2bo4bo2bo$o2bo4bo2bo$b2o6b2o3$7bo$5bo2bob2o$6b2o2b 2o3$6b4o$5b6o$4b8o$3b2o6b2o$4b8o$5b6o$6b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]]
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

Jolson (also known as Al Jolson) is a period 15 oscillator consisting of two blocks hassled by two pentadecathlons. It was found by Robert Wainwright in November 1984 and named by Bill Gosper. A period 9 version that uses two snackers instead of pentadecathlons is also possible (see below), but a p14 (by hitting the sides of the pentadecathlon with 34P14 shuttles) is not possible. It is not possible to create a period 45 version by using one snacker and one pentadecathlon, however, as the sparks must be both present at the same time when hassling.

Image gallery

The period 9 version of Jolson
Download RLE: click here
One of the phases of Jolson, which led to its name

External links

  • 42P15.1 at Heinrich Koenig's Game of Life Object Catalogs
  • Al Jolson at Wikipedia