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Oscillator Discussion Thread

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.

Re: Oscillator Discoveries Thread

Postby BlinkerSpawn » April 8th, 2016, 7:10 am

Left, reduced population, right, reduced bounding box:
x = 38, y = 16, rule = B3S23
11b2o19b2o$11bo3b2o15bo3b2o$2b2o9bo2bo6b2o9bo2bo$bo2bo7b3o7bo2bo7b3o$b
obo2b2ob2o11bobo2b2ob2o$2bob2obobob4o8bob2obobob4o$obo2bobobo5bo5bobo
2bobobo5bo$2obo3bo2b6o5b2obo3bo2b6o$3bo3bo16bo3bo$2obobobob4ob2o8bobob
ob4ob2o$o2bobob2o4b2obo6b2obob2o4b2obo$2b2ob2o3b2o4bo7bob2o3b2o4bo$8b
2obob3o7bo5b2obob3o$9bobobo10b5obobobo$7bo4bo13bo6bo$7b2o!
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Re: Oscillator Discoveries Thread

Postby Dean Hickerson » April 8th, 2016, 8:00 am

BlinkerSpawn wrote:Left, reduced population, right, reduced bounding box:

Here's a further reduction in both population and bounding box:
x = 17, y = 14, rule = B3/S23
5bob2o$5b2o2bob2o$3b2o3bo3bo$2bo3b2ob2o$bob3obobob4o$obo2bobobo5bo$o2b
o3bo2b6o$bobo3bo$2obobobob4ob2o$3bobob2o4b2obo$3bob2o3b2o4bo$4bo3b2obo
b3o$5b3o4b2o$7bo!
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Re: Oscillator Discoveries Thread

Postby muzik » April 15th, 2016, 8:13 am

Not neccesarily a discovery, but is there such thing as an oblique barberpole?

Something that supports this:

x = 47, y = 25, rule = B3/S23
o$obo$2bobo$4bobo$6bobo$8bobo$10bobo$12bobo$14bobo$16bobo$18bobo$20bob
o$22bobo$24bobo$26bobo$28bobo$30bobo$32bobo$34bobo$36bobo$38bobo$40bob
o$42bobo$44bobo$46bo!
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Re: Oscillator Discoveries Thread

Postby BlinkerSpawn » April 15th, 2016, 9:31 am

muzik wrote:Not neccesarily a discovery, but is there such thing as an oblique barberpole?

Something that supports this:

x = 47, y = 25, rule = B3/S23
o$obo$2bobo$4bobo$6bobo$8bobo$10bobo$12bobo$14bobo$16bobo$18bobo$20bob
o$22bobo$24bobo$26bobo$28bobo$30bobo$32bobo$34bobo$36bobo$38bobo$40bob
o$42bobo$44bobo$46bo!

Didn't I refer you to DRH-oscillators.rle before?
x = 17, y = 23, rule = B3/S23
13b3o2$12bo2b2o2$10b2obo2bo$14bo$9b2o3bo2$8b2o2$7b2o2$6b2o2$5b2o2$4b2o
$2bo$3bobo$2obob3o$3bo4bo$bobob3o$2b2obo!
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Re: Oscillator Discoveries Thread

Postby muzik » April 15th, 2016, 10:18 am

BlinkerSpawn wrote:Didn't I refer you to DRH-oscillators.rle before?

Probably.

Is there a smaller stabilisation?
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Re: Oscillator Discoveries Thread

Postby muzik » May 24th, 2016, 6:09 am

New(?) period 12 oscillator, based on an eater posted by PHPBB12345s

x = 19, y = 21, rule = B3/S23
14bo$13bobo$13bobo$12b2ob3o$18bo$12b2ob3o$12b2obo3$4b2o3b2o$4b2o2bo2bo
b2o$8bobo2b2o$9bo2$3bob2o$b4o$o$b3ob2o$3bobo$3bobo$4bo!



Think I might have seen this rotor stabilised with caterers/foxes before
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Re: Oscillator Discoveries Thread

Postby mniemiec » May 24th, 2016, 8:13 am

muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before

This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.
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Re: Oscillator Discoveries Thread

Postby BlinkerSpawn » May 24th, 2016, 9:33 am

mniemiec wrote:
muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before

This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.

This method has indeed been discovered before; I forget by whom.
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Re: Oscillator Discoveries Thread

Postby AbhpzTa » May 24th, 2016, 10:23 am

BlinkerSpawn wrote:
mniemiec wrote:
muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before

This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.

This method has indeed been discovered before; I forget by whom.

http://www.conwaylife.com/forums/viewtopic.php?f=2&t=279&start=925#p17836
Iteration of sigma(n)+tau(n)-n [sigma(n)+tau(n)-n : OEIS A163163] (e.g. 16,20,28,34,24,44,46,30,50,49,11,3,3, ...) :
965808 is period 336 (max = 207085118608).
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Re: Oscillator Discoveries Thread

Postby David » June 4th, 2016, 8:13 am

Any comments on this osc? I found this in 2009 Nov 2nd...
x = 11, y = 11, rule = B3/S23
4b2o$6bo$2bobob3o$5bo3bo$obo4b2obo$o2bo2bo2bo$b2o2bob2o$2bobobo$2bobob
o$3bobo$4bo!
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Re: Oscillator Discoveries Thread

Postby velcrorex » June 23rd, 2016, 10:41 pm

Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.
x = 15, y = 14, rule = B3/S23
o13bo$b2o9b2o$o4b2ob2o4bo$2obo7bob2o$bobo2bobo2bobo$2bobo5bobo$2b3o5b
3o$2b3o5b3o$2bobo5bobo$bobo2bobo2bobo$2obo7bob2o$o4b2ob2o4bo$b2o9b2o$o
13bo!
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Re: Oscillator Discoveries Thread

Postby drc » June 23rd, 2016, 11:03 pm

velcrorex wrote:Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.
x = 15, y = 14, rule = B3/S23
o13bo$b2o9b2o$o4b2ob2o4bo$2obo7bob2o$bobo2bobo2bobo$2bobo5bobo$2b3o5b
3o$2b3o5b3o$2bobo5bobo$bobo2bobo2bobo$2obo7bob2o$o4b2ob2o4bo$b2o9b2o$o
13bo!

Wow that looks very nice, I've never seen it before
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Re: Oscillator Discoveries Thread

Postby Scorbie » June 24th, 2016, 2:02 am

drc wrote:
velcrorex wrote:Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.
x = 15, y = 14, rule = B3/S23
o13bo$b2o9b2o$o4b2ob2o4bo$2obo7bob2o$bobo2bobo2bobo$2bobo5bobo$2b3o5b
3o$2b3o5b3o$2bobo5bobo$bobo2bobo2bobo$2obo7bob2o$o4b2ob2o4bo$b2o9b2o$o
13bo!

Wow that looks very nice, I've never seen it before
Wow! Congrats! How did you find this? I am not even sure if one can tweak WLS settings to find this kind of thing!
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Re: Oscillator Discoveries Thread

Postby velcrorex » June 25th, 2016, 11:12 pm

Scorbie wrote:How did you find this? I am not even sure if one can tweak WLS settings to find this kind of thing!


Nicolay Beluchenko's version of WLS does allow you to search for exactly this kind of thing. There is an option to limit the number of cells in the stator, even down to zero.

EDIT:
Download linked in this post: viewtopic.php?p=26189#p26189
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Re: Oscillator Discoveries Thread

Postby drc » August 2nd, 2016, 11:13 pm

Probably known:
x = 11, y = 11, rule = B3/S23
2o$bo$bobo3bo$2b2o2bobo$5bobo$5bo$5bo2bo$8bo$7bo$8b3o$10bo!


EDIThttp://www.conwaylife.com/wiki/Confused_eaters
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Re: Oscillator Discoveries Thread

Postby muzik » August 3rd, 2016, 6:53 am

This, in all technicality, answers one of my questions:

x = 25, y = 33, rule = B3/S23
10b2o$11bo$11bob2o2b2o$o11bo3bobo$bo15bo$14b3o2$17b2o$17bo$18b3o$20bo
5$10b2o10b2o$9bo2bo8bo2bo$o7bobobo6bo2bobo$bo5b3obo7bo3bo$2bo4b3o9bo$
22bo$20b2o4$12bo$o9b3o$bo7bo3b2o$2bo4bo2bo2bo$3bo3bo3bobo$7bo4bo2$9b3o
!
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Re: Oscillator Discoveries Thread

Postby muzik » August 21st, 2016, 6:14 pm

Feel like this has been discovered already.

x = 39, y = 17, rule = B3/S23
12bo$11b2o$10b2o4b2o2b2o$2o7b3o4b2o2b2o$2o8b2o4b2o$11b2o$12bo2$18b3o2$
29bo$28b2o$27b2o4b2o2b2o$17b2o7b3o4b2o2b2o$17b2o8b2o4b2o$28b2o$29bo!


EDIT: well yup, a variant of it.
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Re: Oscillator Discoveries Thread

Postby muzik » September 1st, 2016, 11:07 am

A p3 I'm 99% sure is known. Popped up on WLS so let's test that assertion.

x = 10, y = 10, rule = B3/S23
b2o4bo$o2bo2bobo$obobo2bobo$b2ob2obobo$4bo2b2o$b4obo$bo2bob3o$2bobo4bo
$obo2bobobo$2o2b2ob2o!
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Re: Oscillator Discoveries Thread

Postby Sokwe » September 1st, 2016, 4:37 pm

muzik wrote:A p3 I'm 99% sure is known. Popped up on WLS so let's test that assertion.

This is just stillater with a much larger stator. If you want to know whether an oscillator was previously discovered, you should first check jslife under the 'osc' folder (jslife is available here).
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Re: Oscillator Discoveries Thread

Postby muzik » September 2nd, 2016, 11:49 am

This a new oscillator? Not seeing it anywhere in DRH

x = 10, y = 10, rule = B3/S23
2bo3bo$bobobobo$o2bobobo$b2ob2ob2o$3bo2bo2bo$b3o4bo$o3bobobo$b3o$3bob
2o$4bo!
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Re: Oscillator Discoveries Thread

Postby BlinkerSpawn » September 2nd, 2016, 1:43 pm

muzik wrote:This a new oscillator? Not seeing it anywhere in DRH

x = 10, y = 10, rule = B3/S23
2bo3bo$bobobobo$o2bobobo$b2ob2ob2o$3bo2bo2bo$b3o4bo$o3bobobo$b3o$3bob
2o$4bo!

Not seeing it in any of the p4 jslife collections or recognizing it from any other ConwayLife posts; neat find!
Smaller version:
x = 10, y = 10, rule = B3/S23
7b2o$4bo2bo$3bobobo$2bobo2b2o$bobo2bo2bo$2bo4bobo$4bo$4obobo$o2bo$4b2o
!
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Re: Oscillator Discoveries Thread

Postby muzik » September 2nd, 2016, 2:45 pm

Wiki page then?
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Re: Oscillator Discoveries Thread

Postby dvgrn » September 2nd, 2016, 3:22 pm

muzik wrote:Wiki page then?

I'd say no -- not quite that neat a find. P4 is a low enough period that if this oscillator counts as wiki-worthy, people could crank up WLS or JLS or whatever and generate hundreds more period-4 objects, and it would be hard to say why they were any less wiki-worthy than this one. The same goes for the piles of unnamed period-4 objects already collected in jslife.

Notice that the Oscillators of period 4 group in the LifeWiki currently has only 35 objects, almost all of which were (a) discovered in the early 1970s, (b) have useful sparks and therefore get included in all kinds of circuitry, or (c) both.

Of course, my flowchart for answering the "Wiki page?" question is pretty simple:

Wiki page? --> No

-- or, more seriously,

Multiple people have been talking about object fairly regularly for multiple years?
Yes --> should have a wiki page
No --> shouldn't have a wiki page yet

Of course you can perfectly well reduce "years" to "months" or "weeks", in special circumstances... but really, in most cases, there's no need to be in a big hurry to decide. If this new P4 turns out to provide a spark for a new smallest color-changing p4 glider reflector, or something along those lines, then it will end up on the wiki with no need to ask the question.
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Re: Oscillator Discoveries Thread

Postby muzik » September 2nd, 2016, 4:02 pm

There aren't many p7s... I'm assuming any new p7 rotors would deserve a page then.

Speaking of p7s, I haven't been having way too much luck searching for the T-nosed p7... anyone else up for the challenge?
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Re: Oscillator Discoveries Thread

Postby Sokwe » September 2nd, 2016, 5:08 pm

muzik wrote:There aren't many p7s... I'm assuming any new p7 rotors would deserve a page then.

I would say "no". First, there are a lot of known p7s (see o0007-bil.lif). Second, even if there weren't, that doesn't automatically mean any new oscillator should get a page. For example, there are only a few p13 oscillators, but most of them are boring billiard tables. In my opinion, the only known p13s that deserve a page are Buckingham's p13 (the first) and Nicolay's p13 (the smallest).

There are currently many patterns that should have pattern pages but don't (for example, the 9 oscillators listed here). Focus on these pages first.

As a last note, here is an important question to ask yourself before adding a new page: "What other pages should link to this page?" (not counting category pages). If there isn't a good reason to link to your new page, then it's probably not notable enough to be included on the wiki.
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