Thread for basic questions

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Gustone
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Re: Thread for basic questions

Post by Gustone » October 14th, 2019, 12:37 pm

Is there a spaceship that can support this tagalong

Code: Select all

x = 4, y = 5, rule = B3/S23
2b2o2$2o$2bo$2o!
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Hdjensofjfnen
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Re: Thread for basic questions

Post by Hdjensofjfnen » October 21st, 2019, 8:23 pm

All the buzz has been about colliding gliders to cleanly make a Sir Robin. But is it possible for a finite amount of Sir Robins to cleanly make a single glider? After all, the knightship's so big it's hard to clean any reaction up.
"A man said to the universe:
'Sir, I exist!'
'However,' replied the universe,
'The fact has not created in me
A sense of obligation.'" -Stephen Crane

Code: Select all

x = 7, y = 5, rule = B3/S2-i3-y4i
4b3o$6bo$o3b3o$2o$bo!

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toroidalet
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Re: Thread for basic questions

Post by toroidalet » October 21st, 2019, 8:32 pm

Hdjensofjfnen wrote:
October 21st, 2019, 8:23 pm
All the buzz has been about colliding gliders to cleanly make a Sir Robin. But is it possible for a finite amount of Sir Robins to cleanly make a single glider? After all, the knightship's so big it's hard to clean any reaction up.
Colliding 35 pairs of Sir Robins like this can create any 35-glider synthesis, and one of these syntheses sends salvos of gliders in just the right way to destroy all the ash and release an extra glider:

Code: Select all

x = 89, y = 81, rule = B3/S23
62b2o$62bo2bo$25b2o35bo3bo$23bo2bo37b3o$22bo3bo33b2o6b4o$22b3o35bob2o
4b4o$17b4o6b2o30bo4bo6b3o$17b4o4b2obo31b4o4b2o3bo$15b3o6bo4bo28bo9b2o$
15bo3b2o4b4o30bo3bo$19b2o9bo33b3o2b2o2bo$25bo3bo30b2o7bo4bo$15bo2b2o2b
3o46bob2o$14bo4bo7b2o39b2o6bo$14b2obo51b2ob3obo$12bo6b2o47b2o3bo2bo$
12bob3ob2o48bobo2b2o$12bo2bo3b2o47bo2bobobo$14b2o2bobo47b3o6bo$13bobob
o2bo48bobobo3bo$11bo6b3o51b2obobo$11bo3bobobo49bo6b3o$11bobob2o$10b3o
6bo49bo9bo$69bo3bo6bo$9bo9bo50bo5b5o$8bo6bo3bo50b3o$8b5o5bo55b2o$16b3o
52b3o2bo$13b2o54bob3obo$12bo2b3o50bo3bo2bo$13bob3obo49bo4b2ob3o$13bo2b
o3bo50b4obo4b2o$9b3ob2o4bo51bob4o4b2o$6b2o4bob4o59bo$6b2o4b4obo60bo2b
2o$11bo66b2o$6b2o2bo68b5o$9b2o72b2o$5b5o67b3o6bo$4b2o72bobo3bobo$2bo6b
3o65bo3bo3bo$2bobo3bobo66bo3b2o$3bo3bo3bo64bo6bob3o$6b2o3bo65b2o3bo3b
2o$b3obo6bo65b4o2bo2bo$b2o3bo3b2o68b2o3bo$bo2bo2b4o68bo$3bo3b2o70b2obo
$9bo68bo$6bob2o67b5o$10bo66bo4bo$7b5o64b3ob3o$6bo4bo64bob5o$6b3ob3o63b
o$6b5obo65bo$12bo61bo4b4o$10bo67b4ob2o$6b4o4bo60b3o4bo$4b2ob4o71bobo$
6bo4b3o72bo$4bobo75bo2b2o$2bo80b3o$2b2o2bo73b2o$3b3o73b3o5bo$7b2o73b2o
2bobo$bo5b3o69bo2b3obobo$obo2b2o73b2obo2bo$obob3o2bo72bobo2b2o$2bo2bob
2o75b2o$2o2bobo73b3o4bo$3b2o75b3o4bo$bo4b3o72b2o3b3o$bo4b3o73b2ob2o$3o
3b2o75b2o$2b2ob2o76bo$4b2o$5bo76b2o$84bo$5b2o$4bo!
There's also one that systematically searches through 35-glider collisions until it finds one that cleans up all the ash and releases 1 glider, then creates that one, which is slightly more constructive.

EDIT: It would take a little more, since reflection reactions would be needed to get some of the closer gliders.
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-Terry Pratchett

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Hdjensofjfnen
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Re: Thread for basic questions

Post by Hdjensofjfnen » November 5th, 2019, 3:13 am

Would this be known as a component, because it adds a 13-cell induction coil onto a block? (Known, by the way.)

Code: Select all

x = 17, y = 13, rule = B3/S23
10bo$8b2o$bo7b2o$2bo$3o2$7b2o$7b2o6bo$14b2o$14bobo$7b2o$6b2o$8bo!
"A man said to the universe:
'Sir, I exist!'
'However,' replied the universe,
'The fact has not created in me
A sense of obligation.'" -Stephen Crane

Code: Select all

x = 7, y = 5, rule = B3/S2-i3-y4i
4b3o$6bo$o3b3o$2o$bo!

Ian07
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Re: Thread for basic questions

Post by Ian07 » November 5th, 2019, 12:01 pm

Hdjensofjfnen wrote:
November 5th, 2019, 3:13 am
Would this be known as a component, because it adds a 13-cell induction coil onto a block? (Known, by the way.)

Code: Select all

x = 17, y = 13, rule = B3/S23
10bo$8b2o$bo7b2o$2bo$3o2$7b2o$7b2o6bo$14b2o$14bobo$7b2o$6b2o$8bo!
I don't think so; since every cell in the block dies at some point in the reaction it can't really be used in any other situation.

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Gustone
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Re: Thread for basic questions

Post by Gustone » November 9th, 2019, 11:20 am

How are mirage flying wing and chehire cat notable
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Ian07
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Re: Thread for basic questions

Post by Ian07 » November 9th, 2019, 11:58 am

Gustone wrote:
November 9th, 2019, 11:20 am
How are mirage flying wing and chehire cat notable
Mirage and Flying wing were both tagged for unclear notability at one point, but the tags were later removed because it had been judged that the consensus was to keep them. As for cheshire cat, it seems to be one of the many patterns and general terms taken from the Life Lexicon. In fact, it appears that every term in the Lexicon (even the most obscure ones like LWTDS) has been added to LifeWiki. I'm not sure I personally agree with these decisions, but that's what been decided.

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Re: Thread for basic questions

Post by dvgrn » November 9th, 2019, 1:53 pm

Ian07 wrote:
November 9th, 2019, 11:58 am
In fact, it appears that every term in the Lexicon (even the most obscure ones like LWTDS) has been added to LifeWiki. I'm not sure I personally agree with these decisions, but that's what been decided.
The LWTDS entry is a fairly unusual case -- deleted at one point because it's a term that no longer gets much use (if it ever did), but then brought back on general principles because it was in the Life Lexicon.

Most of the strange old irrelevant-looking stuff like Cheshire cat is in the Life Lexicon because it was in LIFELINE. And it's in the LifeWiki because Nathaniel basically started the LifeWiki by importing the 2006 version of the Life Lexicon.

It seems reasonable to leave these scattered "historical interest only" terms in place, since they do get mentioned in old articles and books about Conway's Life. But maybe it would make sense to add some kind of "This term is no longer in common use" template at the top of those articles, to help explain why it's there.

If I remember right, "flying wing" sneaked in to the LifeWiki because it got nominated for a Pattern of the Year competition, and got a few votes. So it became a case where people might stumble over the name and want to look up what it is, even if it's not a particularly notable advance in spaceship technology.

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