Create your own terminology

[HotWheels9232]

A puffer/spaceship has a volatile period if its period can be changed by perturbing it. Period multiplication does not count.
Surprisingly, a lot of puffers don't have a volatile period. For example, the Schick engine has a non-volatile period. No matter what you do, it'll always have a period of 12n. The Coe ship's period is slightly more volatile. There are a few rakes that rephase the Coe ship, but it's not easy.
EDIT: As dvgrn points out, technically everything is a multiple of 4 or 2. So I'll try something else.
A puffer spits out exhaust at some base period. Its total period is then some multiple of this base period. A puffer displays period volatility when its exhaust is perturbed in such a way that changes the base period.

Puffer 2 has a volitile period(Well actually not but it is based on the first definition and I think it is perfectly good. We can call it a vulnerable period if you want to):

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x = 279, y = 22, rule = LifeHistory
4.D.3D.3D$4.D.D.D.D.D$4.D.D.D.D.D$4.D.D.D.D.D$4.D.3D.3D2$267.D.D.D.3D
$267.D.D.D.D.D$267.D.3D.D.D$267.D3.D.D.D$267.D3.D.3D$7.3A4$.A8.A4.A$A
5.A2.A4.A$A6.3A4.A247.A8.A4.A$A2.A10.A2.A243.A5.A2.A4.A$3A11.3A244.A
6.3A4.A$261.A2.A10.A2.A$261.3A11.3A!

Yes, but the base period is still 20. So this seems to be ordinary period multiplication.

Okay, but I said if you don't want to change the definition, just make a new term calles vulnerable period

[hotdogPi]

Vulnerable period sounds like something you'd try to avoid, such as 76 and 77 for the syringe.

[HotWheels9232]

The Oblique Speed of a spaceship will be (m,n)(m+n)c/p(I am not sure if I am using the traditional letters). For example, Sir Robin will have a oblique speed of (2,1)c/2 and the oblique puffer(the only one I could think of) will have a speed of (24,19)43c/236 Edit 1:Where did the 6 go? Fixed(it has a normal speed of (24,19)c/236)

[dl-rs]

I've got a stupid idea.
loopgun: a gun using a x(x = g or h or b or p) to 2x conduit, to let the "x" part circle.

Then after typing these I've got AN EVEN MORE stupid idea.

hasslergun: a gun using hassler-partials to construct the spaceship.

[HotWheels9232]

I've got somestupid ideas:
Mesusyntheses:A synthesis made out of some common evolutionary sequences(that would be useful for a rule without common spaceships).
Mesusynthesis gun:A gun using methusyntheses.

[Book]

Code: Select all

x = 7, y = 7, rule = B3/S23
ob2ob2o$2obobo$3bo2bo$3ob3o$o2bo$bobob2o$2ob2obo!

Tub of snakes? (max density 7x7)

[otismo]

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x = 7, y = 7, rule = B3/S23
ob2ob2o$2obobo$3bo2bo$3ob3o$o2bo$bobob2o$2ob2obo!

Tub of snakes? (max density 7x7)

Spot On, Book !

Introducing the HiveShip

gen34 of this HoneyFarm-BeeHive Reaction, when the First Glider also appears :

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x = 125, y = 9, rule = B3/S23
b2o58b2o58bo$o2bo56bo2bo57b2o$b2o57b2obo56bobo$bobo57bob2o56bo$2b2o57b
o2bo$bo2bo57b2o$2b2o$123b2o$122b2o!
# [[ ZOOM 3.0 ]]

The Extended PaperClip is gen35...

Cheers !

[confocaloid]

OMOX: oscillator made of objects with apgcodes starting with letter "x".
SMOX: spaceship made of objects with apgcodes starting with letter "x".
XMOX: either OMOX or SMOX.
At least one phase must consist of two or more currently non-interacting still lifes, oscillators and/or spaceships.

[carsoncheng]

Banana/V spark: A spark that can be either a banana spark or a V spark with the same effects on the active region.

Take this for example:

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x = 19, y = 19, rule = B3/S23
6bo$6bo$5bo2$6b2o$7b2o7bo$8bo5bo2b2o$13b2o$12b2o2$5b2o$4b2o$bo2bo5bo$
obo7b2o$11b2o2$13bo$12bo$12bo!

Although the banana spark and the V spark are shown at different locations, the pattern as a whole quickly returns to symmetry.

[hotdogPi]

I've mentioned this on Discord a few times, but until at least November 8, Herschel climbers are now Herschel walkers. This is to improve our site ranking, as many people will be looking for the other meaning of Herschel Walker.

"Offset LOM" and "Offset honey farm" are names for active regions. Without my computer, I can't show them here, but the former is the one that's hassled in Karel's p177, while the latter leaves a bi-block with phi-sparks being generated near the end. There's also "house tie boat" (yes, it's up there on the list) and "pre-anvil" (the one that creates an anvil when it hits certain objects). Someone on Discord called the pre-anvil "anvillar" as a portmanteau of anvil + caterpillar, but I'm not seeing any connection to the caterpillar.

The L-hexomino is the one that's a line of five plus one sideways at one end (5o$o!, if I'm doing it correctly, since I'm typing RLEs by hand). It creates two blinkers relatively far apart, and if you look at p116 in b3s23osc, you'll see it. It's much more common than census.rle indicates. In case you're wondering about the other one that looks like an L (4o$o$o!), that's the V-hexomino if it needs a name, but it's not as essential since it doesn't have its own unique evolutionary sequence.

[confocaloid]

What would be an equivalent of the octohash function for patterns on the hexagonal tiling?

[wirehead]

What would be an equivalent of the octohash function for patterns on the hexagonal tiling?

Duodecahash, probably. It's octohash (octo=eight) because there are eight different ways you can orient a pattern on a square grid using rotations and reflections. On a hex grid, there are six rotations, and then reflect the pattern and rotate it six times again, so that makes 12. Correct me if I'm wrong.

[confocaloid]

I propose to name this still life the chucklebait, after its apgcode (xs23_4aklb88gzw6a871):

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x = 12, y = 16, rule = B3/S23
2b3o$bo3bo$o5bo$o5bo$o5bo$bo3bo$2b3o2$5bo$4bobo$5bobob2o$3bobobobobo$3b2obo4bo$6bob3o$6bobo$7bo!

Here's a pair of p60 HFH oscillators using the recently-found honey farm catalyst.

[Citation needed]

I've mentioned this on Discord a few times, but until at least November 8, Herschel climbers are now Herschel walkers. This is to improve our site ranking, as many people will be looking for the other meaning of Herschel Walker.

"Offset LOM" and "Offset honey farm" are names for active regions. Without my computer, I can't show them here, but the former is the one that's hassled in Karel's p177, while the latter leaves a bi-block with phi-sparks being generated near the end. There's also "house tie boat" (yes, it's up there on the list) and "pre-anvil" (the one that creates an anvil when it hits certain objects). Someone on Discord called the pre-anvil "anvillar" as a portmanteau of anvil + caterpillar, but I'm not seeing any connection to the caterpillar.

The L-hexomino is the one that's a line of five plus one sideways at one end (5o$o!, if I'm doing it correctly, since I'm typing RLEs by hand). It creates two blinkers relatively far apart, and if you look at p116 in b3s23osc, you'll see it. It's much more common than census.rle indicates. In case you're wondering about the other one that looks like an L (4o$o$o!), that's the V-hexomino if it needs a name, but it's not as essential since it doesn't have its own unique evolutionary sequence.

Four copies of the "L-hexomino" may make a predecessor of the Kok's Galaxy.

[erictom333]

This 180 degree reflector by simeks should be called the Jubjub, both to continue naming reflectors after characters from Lewis Carroll poems and so something in Conway's Game of Life can be named after an SMG4 character.

Code: Select all

x = 32, y = 32, rule = LifeHistory
2.A$A.A$.2A5$14.A$14.3A9.2A$17.A8.A2.2A$16.2A5.A3.2A2.A$23.4A2.A.A$
28.A.A$25.2A.A$25.2A2.A$28.2A6$19.2A5.2A$18.A2.A4.A.A$14.2A3.A.A6.A$
13.A.A4.A7.2A$13.A9.2A$11.A.2A8.A$10.A.A11.3A$10.A2.2A11.A$11.A.A$10.
2A2.A$13.2A!

[Citation needed]

Code: Select all

B0 cell: an "off" cell that is not touched (orthogonally or diagonally) by any other ON cell.
B1 cell: an "off" cell that is touched by another ON cell, either (but not both) orthogonally or diagonally.
B1e cell: an "off" cell that is touched by another ON cell orthogonally, but none diagonally.
B1V cell: an "off" cell that is touched by another ON cell orthogonally.
S0 cell: an ON cell that is not touched (orthogonally or diagonally) by any other ON cell.
Other terms can be similarly defined.

I'm sure that ColorfulGalaxy is still a Life enthusiast.

[muzik]

"Bubble": a shape formed by four line segments bounding an inner, empty rectangle. Can act as the bushing of several oscillators:

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x = 48, y = 48, rule = B3/S23
21b2o15b2o$22bo15bo$14b2obo3bo5b2obo8bo$14bob2o3b2o4bob2o7b2o2$6bo3b2o
3b3o3b4o3b5o3b6o$5bobobo2bobo3bobo4bobo5bobo6bo$6bo3b2o3b3o3b4o3b5o3b
6o2$6bo3b2o3b3o3b4o3b5o3b6o$5bobobo2bobo3bobo4bobo5bobobo4bo$5bobobo2b
obobobobobo2bobo2bo2bobo4bobo$6bo3b2o3b3o3b4o3b5o3b6o2$2b2o2bo3b2o3b3o
3b4o3b5o3b6o2b2o$2bo2bobobo2bobo3bobo2bobobo2bo2bobo2bo3bo2bo$3bobobob
o2bobo3bobo3b2ob2o4bob2o4b2obo$2b2obobobo2bobo3bobo4bobo3bobobo3bo2bob
2o$6bo3b2o3b3o3b4o3b5o3b6o2$6bo3b2o3b3o3b4o3b5o3b6o$ob2obobobo2bobobob
obobo2bobo2bo2bobo2bo3bob2obo$2obobobobob2obo3bobo2bobob2o4bobo5b2obob
2o$5bobobo2bobo3bobo2bobobo4b2ob2o5bo$5bobobo2bobo3bobo4bobo2bo2bobo3b
o2bo$6bo3b2o3b3o3b4o3b5o3b6o2$2b2o2bo3b2o3b3o3b4o3b5o3b6o2b2o$2bo2bobo
bo2bobobobobobo2bobo3bobobo2bo3bo2bo$3bobobob4obo3bobo4bobo4b2obo5b2ob
o$2b2obobobo2bob2o2bob2o2b2obo5bob2o5bob2o$5bobobo2bobo2b2obo4bob2o4bo
bo6bo$5bobobo2bobo3bobo2bobobobo3bobobo2bobo$6bo3b2o3b3o3b4o3b5o3b6o2$
6bo3b2o3b3o3b4o3b5o3b6o$5bobobo2bobobobobo2bobobo2bo2bobo6bo$5bobob2ob
obo3bobo4bobo4b2obob4obo$2obobobobo2bob2o2bob2o3bob2o4bobobo2bobobob2o
$ob2obobobo2bobo2b2obo3b2obo5bobobo2bobob2obo$5bobobob2obo3bobo4bobo4b
2obob4obo$5bobobo2bobobobobobo2bobobo3bobo6bo$6bo3b2o3b3o3b4o3b5o3b6o
2$14bob2o3b2o4bob2o7b2o$14b2obo3bo5b2obo8bo$22bo15bo$21b2o15b2o!

Code: Select all

x = 43, y = 35, rule = B3/S23
30bo$4b2o5b2o16bobo$4b2o5b2o17bo$36bob2o$4b4o3b4o13b5o3b2obo$3bobo2bob
o4bo11bo5bo$3bo2bobobob2obo8bo2bo2bo2bo2b3o2b2o$2ob2o3bobob2obob2o4bob
obobobobobo3bo2bo$2obo4bobo4bob2o5bo2bo2bo2bob2ob2obo$4b4o3b4o12bo5bob
o3bob2o$28b5o3b3o$6b2o3b2o$6b2o3b2o13b5o5b2obo$25bo2bo2bo4bob2o$21b2o
2b2o3b2o$21bobobob3obob2o$23bobobobobobo$21bobobo5bobo$21b2o2bo2bo2bob
ob2o$25bo2bo2bob2obo$26b5o2$26b5o$25bo3bobo$21b2o2bobo3bo2b2o$21bobobo
2b2obobobo$23bob2o4bobo$21bobobo2b2obobobo$21b2o2bobo3bo2b2o$25bo3bobo
$26b5o2$28bo$27bobo$28bo!

[C_R_116]

Code: Select all

x = 9, y = 9, rule = B3/S23
4bo$2b5o$bo5bo$bo2bo2bo$2obobob2o$bo2bo2bo$bo5bo$2b5o$4bo!

Should be called "Bullseye"

[get_Snacked]

Slug: Hard to explain, a spaceship/oscillator that moves like this:

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x = 12, y = 8, rule = B3567/S15678
2b7o$2b7o$10o$12o$12o$10o$2b7o$2b7o!

i think you might be saying any orthogonal spaceship whose leading edge (at the way it's facing) goes backward before going forward more.
and for oscillators, maybe any oscillator where any leading edges go backward and forward.

[andrewph33]

"Ripple" was coined by me in 2021 on Discord, but I'll define it here so forum-only people can see it: a word for scratches and imperfections on the edge of an exploding pattern which leave a mark on the inside of the explosion instead of unraveling the whole. Below is a particularly good ripple example:

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x = 41, y = 32, rule = B2-a3ain/S012345678
21b2o$19b2obobo$17bob7o$14bob3ob5ob2o$13b3ob3obobob3obo$11b2ob3ob3obob
3ob3o$9bob3ob3ob3ob3ob3ob2o$6bob3ob3ob3ob5ob3ob3obo$5b3ob3ob3ob3ob7ob
3ob3o$3b2ob3ob3ob3ob3ob5ob3ob3ob2o$bob3ob3ob3ob3ob3ob3ob3ob3ob3obo$3ob
3ob3ob3ob3ob3obob3ob3ob3ob3o$b3ob3ob3ob3ob3ob7ob3ob3ob3o$ob3ob3ob3ob3o
b3ob5ob3ob3ob3obo$2ob3ob3ob3ob3ob3obobob3ob3ob3ob2o$3ob3ob3ob3ob3ob3ob
ob3ob3ob3ob3o$b3ob3ob3ob3ob3ob3ob3ob3ob3ob3o$ob3ob3ob3ob3ob3ob5ob3ob3o
b3obo$2ob3ob3ob3ob3ob3ob7ob3ob3ob2o$3ob3ob3ob3ob3ob3ob5ob3ob3ob3o$b3ob
3ob3ob3ob3ob3ob3ob3ob3ob3o$ob3ob3ob3ob3ob3ob3obob3ob3ob3obo$2ob3ob3ob
3ob3ob3ob7ob3ob3ob2o$3ob3ob3ob3ob3ob3ob5ob3ob3ob3o$b3ob3ob3ob3ob3ob3ob
obob3ob3ob3o$ob3ob3ob3ob3ob3ob3obob3ob3ob3obo$2ob3ob3ob3ob3ob3ob3ob3ob
3ob3ob2o$3ob3ob3ob3ob3ob3ob5ob3ob3ob3o$b3ob3ob3ob3ob3ob3ob7ob3ob3o$ob
3ob3ob3ob3ob3ob3ob5ob3ob3obo$2ob3ob3ob3ob3ob3ob3ob3ob3ob3ob2o$3ob3ob3o
b3ob3ob3ob3obob3ob3ob3o!

[hotdogPi]

The two very common sparks on the right need names. The two objects on the left are fairly common examples of patterns that become those sparks.

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x = 22, y = 15, rule = B3/S23
4bo$5o10b3ob3o$4o13bobo8$17bobo$2b3o11bo2bo$bo3bo13bo$o5bo9b3o$o!

[dvgrn]

The two very common sparks on the right need names. The two objects on the left are fairly common examples of patterns that become those sparks.

Code: Select all

x = 22, y = 15, rule = B3/S23
4bo$5o10b3ob3o$4o13bobo8$17bobo$2b3o11bo2bo$bo3bo13bo$o5bo9b3o$o!

Ah, yes, the well-known LL spark and evil-Muppet spark... (no, I didn't really recognize them, and I can't claim that those are their traditional names).

[confocaloid]

A two-state isotropic cellular automaton with Moore neighbourhood is said to be

• forum searchable when its canonical rulestring does not contain any minuses,
• strongly forum searchable when it is forum searchable and each of two parts of its rulestring is nonempty,
• weakly forum searchable when there are no minuses in one of two parts of its rulestring (in the birth part or in the survival part).

Snowflakes, Suns, Switches are strongly forum searchable. Einstein is weakly forum searchable. Conquerors and Colonizers, Serviettes and Seeds are searchable but are not strongly searchable. Every Life-like cellular automaton is searchable.

[squareroot12621]

The effective rule of a still life is formed by combining the birth part of the maxrule and the survival part of the minrule. For example, the effective rule of xs8_32da is B2ikn34-erw5678/S2ace4y, since the minrule is B/S2ace4y and the maxrule is B2ikn34-erw5678/S012345678.

Also, here's a 2-generation box-negator (see page 4):

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x = 6, y = 6, rule = B3/S23
b4o$2o2b2o$ob2obo$ob2obo$2o2b2o$b4o!

[hotdogPi]

"Alternative rock" for a fishhook acting as a rock from its one-cell tail. Named alternative because the more common type is a rock that's equivalent to a snake.

Code: Select all

x = 7, y = 8, rule = B3/S23
5b2o$4bobo$o3bo$o2b2o$bo$bo$bo$o!