Thread for basic questions

[Haycat2009]

What is the rarest object that has been used in a transparent reaction? Is there anything rarer than transparent mango?

EDIT: Transparent eater 1

Pentadecathlons, Paper clips and super ponds may count - if you count catalysts in a hassler.

72P119 has a transparent Pentadecathlon,
p36 shuttle has a transparent Super Pond
and a p32 LOM hassler has a transparent paperclip

[hotcrystal0]

What’s the longest-lasting pattern with n cells for n=1 to n=7?

1. Dot
2. Domino/Duoplet
3. V spark?
4: Spark that turns to a croquet after 1 generation?
5: R-pentomino
6: R-pentomino related, converges with R-pentomino
7: Acorn

would 2-generation T-tetromino predecessor last longer than what you have listed for 4?

[muzik]

What is the smallest period-2 oscillator in Life with +k*k symmetry?

Currently, the wiki lists this oscillator as an example of this symmetry, which is period 4 (and also a bit large):

Code: Select all

x = 26, y = 26, rule = B3/S23
9bo6bo$7b3o6b3o$6bo12bo$6bo2b3o2b3o2bo$5b2obo2bo2bo2bob2o$4bo3b2o6b2o3bo$2b3o
3bob6obo3b3o$bo7bo6bo7bo$bo2b3o12b3o2bo$2obo3bo2bo4bo2bo3bob2o$3bobo2bo8bo2bo
bo$3b2o3bo2bo2bo2bo3b2o$8bo2bo2bo2bo$8bo2bo2bo2bo$3b2o3bo2bo2bo2bo3b2o$3bobo
2bo8bo2bobo$2obo3bo2bo4bo2bo3bob2o$bo2b3o12b3o2bo$bo7bo6bo7bo$2b3o3bob6obo3b
3o$4bo3b2o6b2o3bo$5b2obo2bo2bo2bob2o$6bo2b3o2b3o2bo$6bo12bo$7b3o6b3o$9bo6bo!

I want to know if there are any good period-minimal examples. This is one (though rather boring) such case:

Code: Select all

x = 12, y = 12, rule = B3/S23
3bo4bo$2bobo2bobo$bo2bo2bo2bo$o3bo2bo3bo$b3o4b3o$2bo6bo$2bo6bo$b3o4b3o
$o3bo2bo3bo$bo2bo2bo2bo$2bobo2bobo$3bo4bo!

Perhaps there is a squaredance stabilization centered on this arrangement that could be used instead:

Code: Select all

x = 4, y = 6, rule = B3/S23
b2o2$o2bo$o2bo2$b2o!

[Resu]

Can 28P7.3 be made into an agar?

[I6_I6]

How do you synthesize a procrastinator?

[qqd]

Suppose you found a new spaceship-to-g. It is necessary to mention the corollary spaceship eater in the 'spaceship eaters' thread'? (Assuming an eater is not already known.)

[Resu]

Suppose you found a new spaceship-to-g. It is necessary to mention the corollary spaceship eater in the 'spaceship eaters' thread'? (Assuming an eater is not already known.)

I think it will be probably a good idea to do that, since it'll be easier to find.

[WhiteHawk]

How long does Catagolue take to accept new syntheses? (new Guntrues haven't replaced old versions in the last 5 days)

[hotdogPi]

How long does Catagolue take to accept new syntheses? (new Guntrues haven't replaced old versions in the last 5 days)

Four hours. It's stuck because someone tried to add a glider synthesis that messed up the queue.

[vilc]

How long does Catagolue take to accept new syntheses? (new Guntrues haven't replaced old versions in the last 5 days)

Four hours. It's stuck because someone tried to add a glider synthesis that messed up the queue.

Slight correction : it used to be every four hours (about a year ago), but it is now every eight hours.

[I6_I6]

Does the spark coil technically count as a p2 pi heptomino hassler?

[PK22]

Does the spark coil technically count as a p2 pi heptomino hassler?

No. A hassler needs to have a supporting mechanism that remains stable/periodic without the presence of the hassled object(s).
Related discussion: viewtopic.php?f=7&t=6081#p164647
For example, this is a p3 pi hassler, since the supporting mechanism is independent:

Code: Select all

x = 35, y = 61, rule = B3/S23
6b2obo2bob2o5b2obo2bo$5bobob4obobo2bo2bob4o$5bobo5bo2b5obo5b2obo$4b2ob
4o2bobo5bob4obob2o$7bobobobo2bobo2bobobobo$6b2ob3o2bobobob2obobo$4b2o
6bo2b2o5b3obo$2o5bo3bo3bo2bo2bo5bob2o$obo2bo8bobob2obo2bob2ob2o$2bo2bo
3bob2o3bo2b3o2b2obo$obo2b3obobobo3b2o2b3obobo$2o10b2o7bo3bob2o$5bo4bob
3ob2o8bo2bob2o$5b2ob2ob2o2b3o2bob2ob2o2bobo$4bo4bo2bo6bob2o2b2o2bobo$
5b4o3bobobo4b2o5b4ob2o$10bo2b2ob5o7bo3bobo$5b4obo4bo5bob2obobobobo$5bo
2b2o5bob2o2bo2bob2obobobo$16bobo3b2o5bo3bo$29b2o2b2o20$6b2obo2bob2o5b
2obo2bo$5bobob4obobo2bo2bob4o$5bobo5bo2b5obo5b2obo$4b2ob4o2bobo5bob4ob
ob2o$7bobobobo2bobo2bobobobo$6b2ob3o2bobobob2obobo$4b2o6bo2b2o5b3obo$
7bo3bo3bo2bo2bo5bob2o$5bo8bobob2obo2bob2ob2o$5bo3bob2o3bo2b3o2b2obo$5b
3obobobo3b2o2b3obobo$12b2o7bo3bob2o$5bo4bob3ob2o8bo2bob2o$5b2ob2ob2o2b
3o2bob2ob2o2bobo$4bo4bo2bo6bob2o2b2o2bobo$5b4o3bobobo4b2o5b4ob2o$10bo
2b2ob5o7bo3bobo$5b4obo4bo5bob2obobobobo$5bo2b2o5bob2o2bo2bob2obobobo$
16bobo3b2o5bo3bo$29b2o2b2o!

Gabriel's p138 is not an Octomino II hassler, as it does not have independent supports:

Code: Select all

x = 21, y = 21, rule = B3/S23
11bo$10b3o$10bob2o$13bo4$2b2o4b2o$b2o10bo$2o11bo$b2o15b2o$7bo11b2o$7b
o10b2o$11b2o4b2o4$7bo$7b2obo$8b3o$9bo!

[Resu]

Are there dependent conduits where the dependent is as in a dependent reflector?

[mmmmmmmmm]

Apart from p41, what periods are there where the smallest oscillator of that period hasa minpop above 100?

[b-engine]

Is there any natural conduits?

[Resu]

Are there any conduits with only one still life?

[b-engine]

Are there any conduits with only one still life?

SW-2

[PK22]

Is there any natural conduits?

The three blocks making up B60 are fairly common (the b3s23clustersv0 census has 814 occurrences in 5000000 soups, making it about 9x as common as the pentadecathlon). Here is a sample soup:

Code: Select all

x = 33, y = 17, rule = LifeHistory
24.2D5.2D$.A5.A2.2A.3A8.2D5.2D$2.A.3A2.A3.3A$4.2A2.A3.2A.A12.2D$A4.A
8.2A12.2D$3A.5A.3A$2A2.2A.3A2.2A$.A.A2.7A2.A$2A.4A.3A4.A$.2A2.A2.2A2.
4A$.A2.2A3.A2.2A.A$2.5A.A4.A$A2.A2.A.2A.2A$.A.A.A3.A.4A$2.4A.A3.A.A.A
$A.2A.4A.2A2.2A$6A.A4.2A.A!

Unfortunately, I don't think there is currently any natural or semi-natural pattern which is based on 'active' conduits. The most likely one to occur would probably be a Simkin glider gun, since B60 is relatively common, and you only need two copies, a Herschel, and a clear path for the FNGs.

Are there any conduits with only one still life?

RF48H can consist of a single loaf.

Code: Select all

#C [[ STOP 48 ]]
x = 28, y = 9, rule = B3/S23
6bo18bo$6b2o17bo$5b2o18b3o$27bo2$b2o$o2bo$obo$bo!

Switch engine channel, in its simplest form, consists of either a single boat or single claw with tail:

Code: Select all

#C [[ STOP 48 ]]
x = 11, y = 15, rule = B3/S23
2bobo$5bo$bo2bo$3o6$6b2o$6bobo$8bo$7bo$8b3o$10bo!

For some conduits which have no transparent objects, and objects entirely on one side of the active region, you can engineer a useless one-object conduit:

Code: Select all

x = 17, y = 10, rule = B3/S23
6b2ob2o$7bobobo3b2o$7bo2bobobobo$6b2o3b2obo$14b2o$6b2o3b2obo$3o2bobo2b
obobobo$obo3bo3b2o3b2o$obo4b3o$9bo!

[mmmmmmmmm]

Apart from p41, what periods are there where the smallest oscillator of that period hasa minpop above 100?

[Sokwe]

Apart from p41, what periods are there where the smallest oscillator of that period hasa minpop above 100?

Many. See oscillator and table of oscillators by period on the Wiki. For example, all periods whose smallest known oscillator is a rectifier loop must have minpop above 100, since two rectifiers together without gliders is already over 100 cells. The highest population SKOP (Smallest Known Oscillator for each Period) is p67 with 228 cells. I believe it's the only remaining SKOP that still uses a snark loop.

[Resu]

What is the smallest way to stabilize the Z-hexomino?

[b-engine]

What is the smallest way to stabilize the Z-hexomino?

If you mean the connected way, use two pre-blocks.
If you mean induction coils, use two snakes.

Code: Select all

x = 21, y = 4, rule = B3/S23
ob2o10b2ob2obo$2obo11bobob2o$3bob2o3b2obobo$3b2obo3bob2ob2o!

[Haycat2009]

Are there dependent conduits where the dependent is as in a dependent reflector?

There are: They are found in hasslers.

Just search hassler and you will get a megaton of them.

[I6_I6]

I downloaded jslife, but I don't know how to open .lif files. Can someone help?

[hotdogPi]

I downloaded jslife, but I don't know how to open .lif files. Can someone help?

Just open them as plaintext.