Spaceship Discussion Thread

[MathAndCode]

It's complete! And it uses four front propulsion mechanisms! It's beautiful!

Wow. And those aren't even all of the forward movement mechanisms. There's another pair about 35 rows from the front, for example.

[wwei23]

I noticed an interesting P114 puffer on Catagolue:

Code: Select all

x = 0, y = 0, rule = B3/S23
7b3ob3o$6bo2bobo2bo$5bo3bobo3bo$5bo9bo$7bo5bo$4bobo7bobo$3b2obob2o
b2obob2o$2bobobo2bobo2bobobo$b2obo4bobo4bob2o$o3bob2obobob2obo3bo$
4bob3o3b3obo$2o3bo2b2ob2o2bo3b2o$4b2o9b2o$4bo11bo$4b4o5b4o$3b2o2b
2o3b2o2b2o$8bo3bo$8b2ob2o2$8b3ob3o$14b2o$15bo$8b2o5b2o$8bo$8b4o3b
2o$7b2o2b2obo$10bo3bo2$12b3o2$12b3o$11b2ob2o$11bobobo$10b2o3b2o$
12bobo$8b3o5b3o$7b2o9b2o$7bo11bo$6b2o11b2o$6bo13bo$6b4o7b4o$5b2o2b
2o5b2o2b2o$10bo5bo$10b2o3b2o$11bo3bo$10bobobobo$8bo9bo$6b2obo7bob
2o$6bo2b2o5b2o2bo$8b4o3b4o$5b2obo2b2ob2o2bob2o$12bobo$6bob2obo3bob
2obo$5bo15bo$7bo11bo$8bo4bo4bo$7b2o3b3o3b2o$11b5o$7bo2b2o3b2o2bo$
8bobo2bo2bobo$10bobobobo$7bo4bobo4bo$6b2ob2obobob2ob2o$5bobo11bobo
$4b2ob3o2b3o2b3ob2o!

Super interesting because 114=2*3*19, and a factor of 19 is extremely unusual.

[Moosey]

why is this spaceship so abnormally easy to find with ikpx2? Might it be deserving of a name (by merit of that)? (EDIT: "green bean" was one suggestion) (also, it looks like a good target for synthesis for its size, considering how skinny it is-- compare, say, the bulkier Big Glider or Enterprise; or maybe even something smaller but still a little crowded like Orion).

[wwei23]

why is this spaceship so abnormally easy to find with ikpx2?

Low width, probably.

[MathAndCode]

Are there any c/4 diagonal spaceships with a different forward movement mechanism from the glider?

[wwei23]

Are there any c/4 diagonal spaceships with a different forward movement mechanism from the glider?

Does Enterprise count?

Code: Select all

#N Enterprise
#O Dean Hickerson
#C A period 4 diagonal spaceship with speed c/4 found in March 1993.
#C www.conwaylife.com/wiki/index.php?title=Enterprise
x = 21, y = 21, rule = B3/S23
8bo12b$6b2obo11b$4b2o3bo11b$3bo3b2o12b$2bo4b2obo10b$bo2b2ob3obo9b$bo
19b$3bobo3b2o10b$2o3bobo13b$o3bo3b2o11b$bo2b2o2bo2bo9b$4b2o3bo8bo2b$
10bobo3bobobo$12b2ob3o2bo$12b2o4b2ob$13bob2o4b2$11bobo7b$11bo9b$11b3o
7b$12bobo!

[MathAndCode]

Are there any c/4 diagonal spaceships with a different forward movement mechanism from the glider?

Does Enterprise count?

Code: Select all

#N Enterprise
#O Dean Hickerson
#C A period 4 diagonal spaceship with speed c/4 found in March 1993.
#C www.conwaylife.com/wiki/index.php?title=Enterprise
x = 21, y = 21, rule = B3/S23
8bo12b$6b2obo11b$4b2o3bo11b$3bo3b2o12b$2bo4b2obo10b$bo2b2ob3obo9b$bo
19b$3bobo3b2o10b$2o3bobo13b$o3bo3b2o11b$bo2b2o2bo2bo9b$4b2o3bo8bo2b$
10bobo3bobobo$12b2ob3o2bo$12b2o4b2ob$13bob2o4b2$11bobo7b$11bo9b$11b3o
7b$12bobo!

Yes. Thank you.

By the way, the back is the same as in the Orions.

[HartmutHolzwart]

Those were the times, when the world was still young and we tried out WLS...

By then, we didn‘t have the Forums, but only a closed mailing list.

[MathAndCode]

Code: Select all

x = 6, y = 9, rule = B3/S23
2b4o$bo3bo$o3b2o$3bo$o$3bo$o3b2o$bo3bo$2b4o!

I just found another instance of the same forward movement mechanism (staring at generation 33). It doesn't last for as long, but it transitions to c/2 afterwards.

Code: Select all

x=13, y=1, rule = B3/S23
7ob5o!

By the way, the instance that I posted first is from generation 230 of the R-pentomino.

[wwei23]

Is it possible to build a pseudo-period 7 rake with AbhpzTa's 3c/7 puffer technology?

[LaundryPizza03]

I note that the 3c/12o from jslife can be trivially reduced to 314 cells by making it symmetric:

Code: Select all

x = 49, y = 34, rule = B3/S23
22bo3bo$22bo3bo$21bobobobo2$21bobobobo$6bo3bo12bobo12bo3bo$4b9o7bobo3b
obo7b9o$20bobo3bobo$7bobo10bo2b3o2bo10bobo$4b2obobob2o23b2obobob2o$19b
2o7b2o$5bobobobo7bo9bo7bobobobo$7bobo10bo7bo10bobo$4b2o5b2o6b2ob5ob2o
6b2o5b2o$3bobo5bobo6bo2bobo2bo6bobo5bobo$3b2o7b2o7bobobobo7b2o7b2o$3b
2o7b2o21b2o7b2o$2b2o3b3o3b2o7b2ob2o7b2o3b3o3b2o$4bo3bo3bo9bo3bo9bo3bo
3bo$bo13bo5b2o3b2o5bo13bo$b2o11b2o5b2o3b2o5b2o11b2o$2bobo2b3o2bobo19bo
bo2b3o2bobo$bobobo5bobobo5b2o3b2o5bobobo5bobobo$o2bobo5bobo2bo3bo2bobo
2bo3bo2bobo5bobo2bo$2bobo7bobo5bo2bobo2bo5bobo7bobo$2bobo2bobo2bobo6bo
bobobo6bobo2bobo2bobo$2bo3bo3bo3bo7b2ob2o7bo3bo3bo3bo$2bo11bo19bo11bo$
bo13bo17bo13bo2$2b2obo5bob2o19b2obo5bob2o$2b2o2bo3bo2b2o19b2o2bo3bo2b
2o$2b2o3bobo3b2o19b2o3bobo3b2o$6bo3bo27bo3bo!

This version also has a slightly smaller bounding box. Has anyone else noticed this?

[bubblegum]

I note that the 3c/12o from jslife can be trivially reduced to 314 cells by making it symmetric:

Code: Select all

x = 49, y = 34, rule = B3/S23
22bo3bo$22bo3bo$21bobobobo2$21bobobobo$6bo3bo12bobo12bo3bo$4b9o7bobo3b
obo7b9o$20bobo3bobo$7bobo10bo2b3o2bo10bobo$4b2obobob2o23b2obobob2o$19b
2o7b2o$5bobobobo7bo9bo7bobobobo$7bobo10bo7bo10bobo$4b2o5b2o6b2ob5ob2o
6b2o5b2o$3bobo5bobo6bo2bobo2bo6bobo5bobo$3b2o7b2o7bobobobo7b2o7b2o$3b
2o7b2o21b2o7b2o$2b2o3b3o3b2o7b2ob2o7b2o3b3o3b2o$4bo3bo3bo9bo3bo9bo3bo
3bo$bo13bo5b2o3b2o5bo13bo$b2o11b2o5b2o3b2o5b2o11b2o$2bobo2b3o2bobo19bo
bo2b3o2bobo$bobobo5bobobo5b2o3b2o5bobobo5bobobo$o2bobo5bobo2bo3bo2bobo
2bo3bo2bobo5bobo2bo$2bobo7bobo5bo2bobo2bo5bobo7bobo$2bobo2bobo2bobo6bo
bobobo6bobo2bobo2bobo$2bo3bo3bo3bo7b2ob2o7bo3bo3bo3bo$2bo11bo19bo11bo$
bo13bo17bo13bo2$2b2obo5bob2o19b2obo5bob2o$2b2o2bo3bo2b2o19b2o2bo3bo2b
2o$2b2o3bobo3b2o19b2o3bobo3b2o$6bo3bo27bo3bo!

This version also has a slightly smaller bounding box. Has anyone else noticed this?

It might be one of those two-different-stabilisations patterns.

[MathAndCode]

If attempting to synthesized a spaceship that is elongate in its direction of travel in parts (as opposed to an activation stage all at once), is there a speed below which synthesizing the spaceship from the front first (so the partial spaceship will run away from its problems instead of towards them) becomes advantageous over synthesizing the spaceship from the back first (so gliders can collide with the construction region more frequently), i.e. where allowing more frequent collisions ceases to outweigh the partial running away from its problems? Does this depend on whether the spaceship is orthogonal or diagonal?

[toroidalet]

Partial spaceships decay at about the speed of light, so if you tried to incrementally synthesize a long spaceship, you would find the formed part decaying away from the direction you're synthesizing it faster than you could put the next components in (especially since it takes a massive blob of still life junk hit in just the right way with dozens of gliders to produce the components in the first place), so this method unfortunately does not work for our giant low-period spaceships (however, this does work for engineered spaceships; consider the stalled attempt to synthesize a Waterbear or the various examples of people creating guns for replicator-based ships in other CAs).

[wwei23]

Partial spaceships decay at about the speed of light, so if you tried to incrementally synthesize a long spaceship, you would find the formed part decaying away from the direction you're synthesizing it faster than you could put the next components in

Yeah, but what about the wriggler/switch engine extruder? It uses an incremental synthesis, and surely one could finish a stack of switch engines by synthesizing two more on each side to make a supporting back Cordership.

[PC101]

Are these known?

Code: Select all

x = 101, y = 404, rule = B3/S23
8$15bo3bo5bo3bo39bo3bo$14b7o3b7o38bo3bo$13bo3bo3bobo3bo3bo36bobobobo$
14bo4bobobobo4bo$19bobobobo41bo7bo$18bobo3bobo37bob2o2bobo2b2obo$17bo
2bo3bo2bo36bobo2b2ob2o2bobo$20bo3bo38bob3o2bobo2b3obo$17bobo5bobo40b3o
b3o$18bo7bo40bobo3bobo$64b2o2b2o3b2o2b2o$16b2ob2o3b2ob2o34bobobo7bobob
o$16b2ob2o3b2ob2o34bobobo2bobo2bobobo$17b3o5b3o34b2obo2b2o3b2o2bob2o$
62bo2b2o2bo3bo2b2o2bo$14bo2b3o5b3o2bo32b3o11b3o$14bo15bo34bo11bo$13bob
o13bobo$66b2o7b2o$16b4o5b4o35b3o9b3o$63bo15bo$62bo3bo9bo3bo$18b3o3b3o
36bo15bo$16b3o7b3o34bobo11bobo$15bo13bo35b2o9b2o$16bob2o5b2obo35b3o9b
3o$20bo3bo41bo9bo$17bo3bobo3bo37b2obo5bob2o$16b2o9b2o37b2ob2ob2ob2o$
15bo13bo35bo4bobo4bo$14b3o11b3o33b3obobobobob3o$14bob4o5b4obo35bo2bo3b
o2bo$13b3o13b3o31b2obo9bob2o$13bo6b2ob2o6bo34bo9bo$14bob2o3bobo3b2obo
32bo4bo5bo4bo$17bo3bobo3bo35bo3bo7bo3bo$15b2obo2bobo2bob2o37bo7bo$17bo
9bo35b4obo5bob4o$17bob3ob3obo35b2ob2obo3bob2ob2o$15bo13bo33bo15bo$14bo
2bo9bo2bo34b2o9b2o$14bo15bo33bo3bo5bo3bo$66b2o7b2o$15b3o9b3o37bo7bo$
19bo5bo$16bob2o5b2obo37b2o7b2o$16bo3bo3bo3bo34bob2obo5bob2obo$18b2o5b
2o36bobobo7bobobo$17b2ob2ob2ob2o34bobobo9bobobo$17b2o2bobo2b2o38b2o7b
2o$21bobo43b2o5b2o$19bo5bo41bo7bo$19bo5bo41bo7bo$15bo3b2o3b2o3bo35bo2b
o5bo2bo$14b3o2b2o3b2o2b3o33b6o3b6o$14b3o11b3o32bo3bo7bo3bo$16bo2bo5bo
2bo35bo4b2ob2o4bo$19bobobobo40b2ob2ob2ob2o$14b3obobo3bobob3o36bob2ob2o
bo$13bo3b2o7b2o3bo33bo3bo3bo3bo$14bo2b2o7b2o2bo37bo5bo$15bobo9bobo33bo
b2o9b2obo$63bo2bo9bo2bo$18bobo3bobo39b2o7b2o$18b2obobob2o37bobob2o3b2o
bobo$17bo9bo36bobob2o3b2obobo$21bobo40bo5bobo5bo$15b2o11b2o33b3o4bobo
4b3o$15bo2b2o5b2o2bo33bo2b2o2bobo2b2o2bo$14bo3b2o5b2o3bo33b3obobobobob
3o$13bobo3b2o3b2o3bobo34bobobobobobo$17bo2bo3bo2bo40bobobobo$13bo2b3ob
o3bob3o2bo38bobo$15bo4bo3bo4bo38bobobobo$17bo2bo3bo2bo40bobobobo$17bo
2bo3bo2bo40bo5bo$20bo3bo38b3ob2o5b2ob3o$14b2obo2bo3bo2bob2o31b2ob3o7b
3ob2o$13bobobo9bobobo30b2o4bo5bo4b2o$14bobo2b2o3b2o2bobo35bo2bo3bo2bo$
69bo3bo$16b5o3b5o35bo13bo$15b2obobo3bobob2o33b3o11b3o$18b2o5b2o36b2ob
3o5b3ob2o$15b2ob2o5b2ob2o37bobo3bobo$18b2o5b2o37b3o3bobo3b3o$63bo2bobo
bobobobo2bo$13b3o3bo5bo3b3o30bo7bobo7bo$14bo2bobo5bobo2bo35bobobobobob
o$16bo11bo33b3o2b3o3b3o2b3o$17bo2bo3bo2bo39b2o5b2o$17bo3bobo3bo38b2obo
3bob2o$17bo3bobo3bo37bo4bobo4bo$18b2obobob2o37bob2obo3bob2obo$16bo2bob
obobo2bo35bob2obo3bob2obo$17bo2b2ob2o2bo36bobobo5bobobo$16bo2bobobobo
2bo37bobo5bobo$18b2obobob2o38bo4bobo4bo$19b2o3b2o39bo3bo3bo3bo$19bo5bo
37bo6bobo6bo$18b2o5b2o36bo3bobo3bobo3bo$15b2o11b2o33bo15bo$15b2obob2ob
2obob2o34bobo9bobo$14bo4b3ob3o4bo32bo2bo9bo2bo$13bo2b2o9b2o2bo30bo3bo
9bo3bo$18bo7bo35bo3bo9bo3bo$13b2o3b2o5b2o3b2o32b2o11b2o$16bobob2ob2obo
bo$16bo2bo5bo2bo33b2o15b2o$15b3o3bobo3b3o$15b3o2b2ob2o2b3o33b5o7b5o$
15b3o9b3o$63b2ob2o7b2ob2o$17b2o7b2o38b2o7b2o$18bo7bo36b2o2b2o5b2o2b2o$
19b2o3b2o38bob2o7b2obo$13b3o4b2ob2o4b3o32bo2b3o3b3o2bo$14bobo2bobobobo
2bobo33bobobo5bobobo$17bobobobobobo38bo2b2ob2o2bo$17bobobobobobo36bo2b
ob2ob2obo2bo$17b2o2bobo2b2o38b3obobob3o$19b3ob3o37b3o11b3o$15b3o2bo3bo
2b3o33b2o13b2o$15bo3b3ob3o3bo$15b2o2b3ob3o2b2o32b2obo3bo3bo3bob2o$19b
3ob3o39bo2b3ob3o2bo$16bo2b3ob3o2bo33b2obobob2ob2obobob2o$14b3o2b3ob3o
2b3o31bo2b2o9b2o2bo$13bo5b2o3b2o5bo32bobo9bobo$19bo5bo$63b3o11b3o$14b
4obobobobob4o34bo11bo$18b2o5b2o$14bo3b2o5b2o3bo34b3o7b3o$13bo4bo7bo4bo
33b3o7b3o$14b2obo9bob2o35bobo5bobo$17b2o7b2o39b3o3b3o$17b2o7b2o$14b2o
2b2o5b2o2b2o34b2ob2o3b2ob2o$14b2o3bo5bo3b2o37b2o3b2o$13bo4b2o5b2o4bo
37bo3bo$14bobo3b2ob2o3bobo33bob2o7b2obo$16bo4bobo4bo33b2obob2o5b2obob
2o$64b2o11b2o$15bo13bo36b3o5b3o$15bobo9bobo37bobo3bobo$14bo3bo7bo3bo
38bo3bo$15b3o9b3o36b4o3b4o$16bo11bo36bobo7bobo$18bo7bo37b2obobo3bobob
2o$16b4o5b4o35b2obob2ob2obob2o$15b2o11b2o34bob2ob2ob2ob2obo$14b2ob2obo
3bob2ob2o$14b2obo3bobo3bob2o33bo13bo$14bobo4bobo4bobo34bo11bo$13b2obob
2obobob2obob2o33bo11bo$16bob2obobob2obo$13b3o2b2obobob2o2b3o$17b2o2bob
o2b2o$19bobobobo$20bo3bo$17b2obo3bob2o$17b2o7b2o$17b5ob5o$20b2ob2o$19b
o5bo$18bo2bobo2bo2$17b2obo3bob2o$16bob2o5b2obo$16b2o9b2o$16b2o9b2o$15b
2o11b2o$14b3o11b3o$14bo3bo7bo3bo$15bo4bo3bo4bo$20b2ob2o$17bo3bobo3bo$
17b2o7b2o2$15bo13bo$15bob4o3b4obo$14b2ob4o3b4ob2o$19b2o3b2o$13bo6b2ob
2o6bo$14bo15bo$14bo2b3o5b3o2bo$18bo7bo$17bo9bo$15b3o9b3o2$16b4o5b4o$
16bo2bo5bo2bo$16bo2bo5bo2bo2$14b2o13b2o$14b2o13b2o2$14bobo11bobo$15b3o
9b3o$14bobo11bobo$15b2o11b2o$14bo15bo$16bo11bo$16b3o7b3o$17b3o5b3o2$
13b3obo9bob3o$13b2o15b2o$14bo15bo$13b2o15b2o$13b2o15b2o$14bo2bo9bo2bo$
14bo15bo$15bo2bo7bo2bo$16bob2o5b2obo2$15bobo9bobo$14bob2o9b2obo$13bo3b
o9bo3bo$15b2o11b2o$14bobo11bobo$18b3o3b3o$14bob4obobob4obo$13b2o3bo2bo
bo2bo3b2o$13b3o4bo3bo4b3o$14bobo11bobo$15b2ob2o5b2ob2o$19b2o3b2o$15b2o
11b2o$14bob2o9b2obo$13bo2bob3o3b3obo2bo$13b4o11b4o$15bo2bo7bo2bo$16b2o
9b2o2$15bo4bo3bo4bo$16bo2b3ob3o2bo$16bo2b3ob3o2bo2$17bo2bo3bo2bo$16b2o
3bobo3b2o$14b2o5bobo5b2o$14b6obobob6o$16bobo7bobo$17bobo5bobo$15b2obo
7bob2o$14bobobob2ob2obobobo$14bobobo7bobobo$13b2obo4bobo4bob2o$13bobob
o3bobo3bobobo3$16b3o7b3o2$14b2o13b2o$13bo3b2o7b2o3bo$16bo11bo$13bob2o
11b2obo$14b3o11b3o$16b2o9b2o2$15b2o2bo5bo2b2o$18bo2bobo2bo$18bo2bobo2b
o$16b2o3bobo3b2o$14b2ob3obobob3ob2o$19bo5bo$14bo3b2o5b2o3bo$15b2ob2o5b
2ob2o$15bo2bo7bo2bo2$15bobo2bo3bo2bobo$13b3o4bo3bo4b3o$13b2o2bobo5bobo
2b2o$14b3ob2o5b2ob3o$15bo13bo$16b3o7b3o$17bobo5bobo$16bo11bo$19bo5bo$
16bo2bo5bo2bo$15b2o2bo5bo2b2o$13b2o15b2o$13b6o7b6o$15b2obo7bob2o$16bo
2bo5bo2bo$17bo9bo$19bo5bo$15bo2bobo3bobo2bo$14bob2ob3ob3ob2obo$15b2obo
2bobo2bob2o$20b2ob2o2$17b3o5b3o$16b2o9b2o$15bo2bo7bo2bo$14bo3bo7bo3bo$
15bo13bo$16bobo7bobo$16bo2b2o3b2o2bo$21bobo$14bobo4bobo4bobo$15bobo2b
2ob2o2bobo$14bob4obobob4obo$19bobobobo$19bobobobo$18bo2bobo2bo$20b2ob
2o$20bo3bo$18b3o3b3o$14b2o3b2o3b2o3b2o$14bobo11bobo$16b2o9b2o$14b3o2b
2o3b2o2b3o$14b2o3b2o3b2o3b2o$15bo13bo$15b3o9b3o$14bo4bo5bo4bo$17bobo5b
obo$14bo5bo3bo5bo$17bobobobobobo$14b2ob2o2bobo2b2ob2o$14bo3bo2bobo2bo
3bo$20bo3bo$13b2o15b2o$17b2o7b2o$17bob3ob3obo$16bobo7bobo$14b3o11b3o$
14b3obo7bob3o$16bob4ob4obo$17bo2b2ob2o2bo$16b2ob2o3b2ob2o$15bo13bo$15b
2o2bobobobo2b2o$13bo2bo3bo3bo3bo2bo2$13bo2b2o9b2o2bo$18bo7bo$13b2obo
11bob2o$13b2o3bo7bo3b2o$14bobo11bobo$15bo13bo$14b3o11b3o$15bobo9bobo$
15bobo9bobo$15bo2bo7bo2bo$17bo9bo$15b4o7b4o$14b3o11b3o$19b2o3b2o$14b2o
4b2ob2o4b2o$16bo3b2ob2o3bo$16b2o9b2o$16bo3bo3bo3bo$19bo5bo$13b2obo2bo
5bo2bob2o$13b2obo11bob2o$14b2o4bo3bo4b2o$20bo3bo$14bob2obobobobob2obo$
13b3o13b3o$13b2o3bo7bo3b2o2$15b2o11b2o$15b2o11b2o$16b2o9b2o$15b2o11b2o
$17bo9bo$17bobo5bobo$18bobo3bobo$17b4o3b4o$17bo9bo$17b4o3b4o$17b2o2bob
o2b2o$15b2obo7bob2o$14b3o11b3o$13bo4b2o5b2o4bo$14bobo11bobo$19bo5bo$
20b2ob2o$16bo3b2ob2o3bo$17b2obo3bob2o$16bobobo3bobobo$15bobo2b2ob2o2bo
bo$18bo7bo$15b5o5b5o$16b2o9b2o$15b2o11b2o!

[Hunting]

Partial spaceships decay at about the speed of light, so if you tried to incrementally synthesize a long spaceship, you would find the formed part decaying away from the direction you're synthesizing it faster than you could put the next components in

Yeah, but what about the wriggler/switch engine extruder? It uses an incremental synthesis, and surely one could finish a stack of switch engines by synthesizing two more on each side to make a supporting back Cordership.

He meant most partial spaceships. Cordership is very different from what we are talking about here - it's engineered.

[MathAndCode]

Partial spaceships decay at about the speed of light, so if you tried to incrementally synthesize a long spaceship, you would find the formed part decaying away from the direction you're synthesizing it faster than you could put the next components in (especially since it takes a massive blob of still life junk hit in just the right way with dozens of gliders to produce the components in the first place), so this method unfortunately does not work for our giant low-period spaceships (however, this does work for engineered spaceships; consider the stalled attempt to synthesize a Waterbear or the various examples of people creating guns for replicator-based ships in other CAs).

This partial LWSS decays at about 5c/8, which is c/8 relative to the partial spaceship.

Code: Select all

x = 4, y = 3, rule = B3/S23
bo$3o$ob2o!

Partial spaceships decay at about the speed of light, so if you tried to incrementalYeah, but what about the wriggler/switch engine extruder? It uses an incremental synthesis, and surely one could finish a stack of switch engines by synthesizing two more on each side to make a supporting back Cordership.

Corderships are another good example.

[toroidalet]

I empirically measured the decay speeds of some giant blobs of space junk (I was referring to these types of ships and assumed you were too; I guess I wasn't thorough enough in my exception for "engineered" spaceships), and for ships of all different speeds they seem to be roughly the same, somewhere between 4c/5 and 9/10 (you could try to measure an exact value but I don't really see the point in that):

Code: Select all

x = 135, y = 264, rule = doublelife
89.A$88.A.A15.A$88.A.A14.A.A$89.A16.A2$89.A16.A$88.A.A14.A.A$89.A16.A
2$89.A16.A$88.A.A14.A.A$88.A.A15.A$89.A$106.A$89.A15.A.A$88.A.A15.A$
89.A$106.A$89.A15.A.A$88.A.A15.A$88.A.A$89.A16.A$105.A.A$89.A16.A$88.
A.A$89.A16.A$105.A.A$89.A16.A$88.A.A$88.A.A15.A$89.A15.A.A$106.A$89.A
$88.A.A15.A$89.A15.A.A$106.A$89.A$88.A.A15.A$88.A.A14.A.A$89.A16.A2$
89.A16.A$88.A.A14.A.A$89.A16.A2$89.A16.A$88.A.A14.A.A$88.A.A15.A$89.A
$106.A$89.A15.A.A$88.A.A15.A$89.A$106.A$89.A15.A.A$88.A.A15.A$88.A.A$
89.A16.A$105.A.A$89.A16.A$88.A.A$89.A16.A$105.A.A$89.A16.A$88.A.A$88.
A.A15.A$89.A15.A.A$106.A$89.A$88.A.A15.A$89.A15.A.A$106.A$89.A$88.A.A
15.A$88.A.A14.A.A$89.A16.A2$89.A16.A$88.A.A14.A.A$89.A16.A2$89.A16.A$
88.A.A14.A.A$88.A.A15.A$89.A$106.A$89.A15.A.A$88.A.A15.A$89.A$106.A$
89.A15.A.A$88.A.A15.A$88.A.A$89.A16.A$105.A.A$89.A16.A$88.A.A$89.A16.
A$105.A.A$89.A16.A$88.A.A$88.A.A15.A$89.A15.A.A$106.A$89.A$88.A.A15.A
$89.A15.A.A$106.A$89.A$88.A.A15.A$88.A.A14.A.A$89.A16.A2$89.A16.A$88.
A.A14.A.A$89.A16.A2$89.A16.A$88.A.A14.A.A$88.A.A15.A$89.A$106.A$89.A
15.A.A$88.A.A15.A$89.A$56.3A5.3A39.A$56.A.A5.A.A22.A15.A.A$56.A.A5.A.
A21.A.A15.A$54.A.2A3.A3.2A.A19.A.A$54.2A4.A.A4.2A20.A16.A$58.2A.A.2A
40.A.A$57.A7.A23.A16.A$57.A.A3.A.A22.A.A$53.5A7.5A19.A16.A$52.A2.A11.
A2.A34.A.A$53.A.3A7.3A.A19.A16.A$55.A.2A5.2A.A20.A.A$54.2A.A.A3.A.A.
2A19.A.A15.A$54.3A.A5.A.3A20.A15.A.A$106.A$58.2A3.2A24.A$60.A.A25.A.A
15.A$57.A7.A23.A15.A.A$57.2A5.2A40.A$54.2A11.2A20.A$52.A.2A11.2A.A17.
A.A15.A$52.2A2.2A7.2A2.2A17.A.A14.A.A$52.A2.A2.A5.A2.A2.A18.A16.A$53.
A4.A5.A4.A$53.A2.A2.A3.A2.A2.A19.A16.A$50.A5.A9.A5.A15.A.A14.A.A$51.A
.A15.A.A17.A16.A$55.A11.A$51.A3.A.A7.A.A3.A17.A16.A$51.A2.A3.A5.A3.A
2.A16.A.A14.A.A$52.2A2.2A7.2A2.2A17.A.A15.A$56.A9.A22.A$106.A$56.5A.
5A22.A15.A.A$49.A6.2A.2A.2A.2A6.A14.A.A15.A$48.3A7.A5.A7.3A14.A$48.A
2.2A5.A5.A5.2A2.A31.A$50.A3.5A5.5A3.A16.A15.A.A$55.A.2A5.2A.A20.A.A
15.A$49.A3.A15.A3.A14.A.A$49.A.2A2.A11.A2.2A.A15.A16.A16.2A3.2A$49.A.
4A13.4A.A31.A.A13.2A2.A.A2.2A$52.A17.A18.A16.A$88.A.A34.A.A$50.A21.A
16.A16.A13.A4.A.A4.A$49.A.A19.A.A31.A.A12.A3.A3.A3.A$48.A25.A14.A16.A
13.A2.A5.A2.A$48.A3.A17.A3.A13.A.A$53.A15.A18.A.A15.A13.A11.A$48.2A
23.2A14.A15.A.A12.A2.2A3.2A2.A$50.A3.A2.A7.A2.A3.A33.A12.A3.2A3.2A3.A
$50.A3.A.A.A5.A.A.A3.A16.A30.A2.A.A.A.A2.A$50.A5.A.2A3.2A.A5.A15.A.A
15.A13.2A3.A.A3.2A$50.A3.2A.A7.A.2A3.A16.A15.A.A15.A.A.A.A$54.2A11.2A
37.A16.A.A.A.A$52.A17.A18.A32.2A.A.A.2A$51.A19.A16.A.A15.A18.A.A$51.A
4.A9.A4.A16.A.A14.A.A16.2A.2A$50.2A3.2A9.2A3.2A16.A16.A$50.2A3.A.A7.A
.A3.2A$4.2A44.2A3.2A3.3A3.2A3.2A16.A16.A19.A$4.A2.A42.3A2.3A.A3.A.3A
2.3A15.A.A14.A.A14.A.2A.2A.A$4.A3.A45.A.2A.A3.A.2A.A20.A16.A15.2A.A.A
.2A$6.3A41.2A3.2A.A5.A.2A3.2A48.A.2A.A.2A.A$2.2A6.4A37.A.2A3.A.A.A.A
3.2A.A17.A16.A15.A7.A$2.A.2A4.4A45.A.A.A24.A.A14.A.A14.A7.A$.A4.A6.3A
40.A9.A21.A.A15.A13.2A3.3A3.2A$2.4A4.2A3.A40.3A5.3A22.A30.A11.A$A9.2A
46.2A.A.2A41.A12.2A11.2A$.A3.A52.7A24.A15.A.A18.A$6.3A2.2A2.A40.3A5.
3A21.A.A15.A11.A2.3A5.3A2.A$2.2A7.A4.A38.2A.A.A.A.A.2A21.A29.A13.A$
13.A.2A37.A3.A5.A3.A37.A$10.2A6.A40.2A.2A25.A15.A.A15.A5.A$11.2A.3A.A
34.A2.A.A.A.A.A.A2.A18.A.A15.A16.2A.A.2A$10.2A3.A2.A35.4A7.4A19.A.A
28.4A7.4A$10.A.A2.2A40.A7.A23.A16.A12.3A2.5A2.3A$10.A2.A.A.A39.A7.A
39.A.A15.A5.A$10.3A6.A34.2A.A2.A.A2.A.2A20.A16.A12.2A.3A.A.3A.2A$11.A
.A.A3.A68.A.A29.A2.A5.A2.A$14.2A.A.A37.2A5.2A23.A16.A13.A11.A$11.A6.
3A84.A.A$89.A16.A14.A4.A4.A$11.A9.A35.A7.A22.A.A31.2A5.2A$11.A3.A6.A
34.3A3.3A22.A.A15.A15.2A5.2A$12.A5.5A33.A2.A3.A2.A22.A15.A.A$12.3A42.
A7.A40.A13.A3.A3.A3.A$16.2A38.A2.A3.A2.A22.A29.A4.A3.A4.A$13.3A2.A40.
2A.2A24.A.A15.A12.3A.A5.A.3A$11.A.3A.A42.A.A26.A15.A.A$10.A3.A2.A40.A
.A.A.A41.A$11.A4.2A.3A35.A3.A3.A23.A32.A7.A$13.4A.A4.2A32.A7.A22.A.A
15.A14.2A7.2A$13.A.4A4.2A35.A.A25.A.A14.A.A14.A7.A$19.A35.2A.A5.A.2A
21.A16.A13.3A7.3A$20.A2.2A30.2A2.A3.A2.2A51.A.A9.A.A$20.2A33.A11.A21.
A16.A$21.5A30.A9.A21.A.A14.A.A11.3A9.3A$25.2A27.A.A9.A.A20.A16.A13.A
11.A$19.3A6.A24.4A9.4A50.3A7.3A$20.A.A3.A.A24.2A.A.A5.A.A.2A19.A16.A$
19.A3.A3.A24.A2.A11.A2.A17.A.A14.A.A$19.A3.2A32.A.A3.A.A22.A.A15.A14.
A9.A$18.A6.A.3A26.2A.A3.A.2A22.A29.2A.A7.A.2A$19.2A3.A3.2A22.A2.A3.2A
.2A3.A2.A35.A12.A3.A5.A3.A$20.4A2.A2.A27.A2.A.A2.A23.A15.A.A10.3A.A7.
A.3A$22.2A3.A26.A2.A.2A.2A.A2.A19.A.A15.A14.2A7.2A$21.A33.A.A.A.A.A.A
.A21.A29.A.2A7.2A.A$21.2A.A31.2A2.A.A2.2A39.A13.3A7.3A$20.A36.A.A3.A.
A23.A15.A.A14.A7.A$19.5A34.2A3.2A23.A.A15.A13.A.A7.A.A$19.A4.A30.2A9.
2A20.A.A32.2A3.2A$18.3A.3A30.3A7.3A21.A16.A15.4A.4A$18.A.5A30.A.A7.A.
A37.A.A12.A2.A.A.A.A2.A$18.A34.2A2.A7.A2.2A19.A16.A17.A3.A$20.A32.2A
13.2A18.A.A32.2A3.2A$16.A4.4A34.A3.A25.A16.A16.2A3.2A$20.4A.2A27.A4.A
3.A4.A36.A.A$17.3A4.A29.2A3.A3.A3.2A20.A16.A17.A3.A$24.A.A28.A2.A5.A
2.A20.A.A32.A.A.A.A$28.A26.3A7.3A20.A.A15.A15.A7.A$24.A2.2A25.A.A9.A.
A20.A15.A.A14.A7.A$25.3A26.2A11.2A37.A16.A5.A$22.2A30.A.A4.A4.A.A20.A
$21.3A5.A24.2A4.3A4.2A19.A.A15.A17.2A.2A$24.2A2.A.A23.2A3.A3.A3.2A20.
A15.A.A16.A3.A$21.A2.3A.A.A22.3A4.3A4.3A36.A17.A3.A$22.2A.A2.A22.2A
17.2A17.A35.3A$24.A.A2.2A19.A5.2A2.A.A2.2A5.A15.A.A15.A17.A3.A$26.2A
60.A.A14.A.A15.2A3.2A$22.3A4.A20.A2.A.3A.2A.2A.3A.A2.A16.A16.A$22.3A
4.A26.3A5.3A$23.2A3.3A27.3A.3A23.3A14.3A$24.2A.2A24.A4.2A.A.2A4.A17.A
3.A12.A3.A10.2A3.C3.A3.2A$25.2A32.A3.A23.2A.2A12.2A.2A11.4A5.4A$25.A
95.2A7.2A$59.2A.CA48.2A$24.2A86.2A$26.C!

Yes, it is indeed hilarious that a stray glider hits the red Sir Robin.

[MathAndCode]

I empirically measured the decay speeds of some giant blobs of space junk (I was referring to these types of ships and assumed you were too; I guess I wasn't thorough enough in my exception for "engineered" spaceships), and for ships of all different speeds they seem to be roughly the same, somewhere between 4c/5 and 9/10

I guess that the XWSSes are stabler than most spaceships. This would imply that whether a spaceship runs towards or away from its problems tends to not matter much, so moving towards the construction gliders (and possibly still lifes) is always more important.

[Hunting]

I empirically measured the decay speeds of some giant blobs of space junk (I was referring to these types of ships and assumed you were too; I guess I wasn't thorough enough in my exception for "engineered" spaceships), and for ships of all different speeds they seem to be roughly the same, somewhere between 4c/5 and 9/10

I guess that the XWSSes are stabler than most spaceships. This would imply that whether a spaceship runs towards or away from its problems tends to not matter much, so moving towards the construction gliders (and possibly still lifes) is always more important.

Some spaceship engines are exceptionally robust (when took to the extreme, they becomes puffer engines) but they're rare.

For example:

Code: Select all

x = 17, y = 16, rule = LifeHistory
8.2A$8.A.3A$4.3C6.A$2.2C7.2A$2.2C10.3A$4.C4.A6.A$2.C6.A.2A.A.A$2C3.C
3.A$2C3.C3.A$2.C6.A.2A.A.A$4.C4.A6.A$2.2C10.3A$2.2C7.2A$4.3C6.A$8.A.
3A$8.2A!

[MathAndCode]

Some spaceship engines are exceptionally robust (when took to the extreme, they becomes puffer engines) but they're rare.

Are there quantifiable factors that influence how resilient a spaceship or spaceship partial is, or is it mostly a combination of luck with a small dependence on how quickly it runs away from its problems?

[Hunting]

Some spaceship engines are exceptionally robust (when took to the extreme, they becomes puffer engines) but they're rare.

Are there quantifiable factors that influence how resilient a spaceship or spaceship partial is, or is it mostly a combination of luck with a small dependence on how quickly it runs away from its problems?

Most of the time we determine a spaceship partial's resilientness by its "completed periods number" divided by the length. The Kazyan engine seems to be 4/17.

[MathAndCode]

Most of the time we determine a spaceship partial's resilientness by its "completed periods number" divided by the length. The Kazyan engine seems to be 4/17.

Ah; that makes sense.

[mscibing]

Some (2,1)c/6 partials. I was testing out some tweaks to the "floating rows" in lsss, these took most of a week to find. I currently have a (3,1)c/8 search in progress.

Code: Select all

x = 88, y = 163, rule = B3/S23
34bo35bo$33b4o4b3o24b5o$32bo2b2o2bo3bo24bo4b2o$35bo2b2o26bo3b3obo$38b
2ob2o23bo3b2obo$32b3o7bo22bo3bo$16b2o11b2o2b2o6b2o22b2obo$15b2o12b2o2b
o3bo2bobo22b4o2bo$16b3obo8bo2b2o33bo$14b3o2b2o4b3o37b4o3b2o$13bo5b3o2b
ob2o37b3o2bob2o$13bo2bo5b3o2bo41b2obobo$14bo3bobo4bo43b3o2b2o$14bobobo
bob2o40b3o6b3o$14bo3bob3o42b2o5b2o$11b3o3b4o$11bo6bo51b3o3b2o2bo$17bo
54bob2o3b2o$10b4obob3o52b2o$73bo4b2o$73bo3bo$73bo$74bo2b2o$79b2o$75bo
3b2o$75bo3bobo$75b3o2$80bo$78b2ob2o$34bo39b5o4bo$33b4o4b3o31b2o$32bo2b
2o2bo3bo31b6o3bo$35bo2b2o43b2obo$38b2ob2o33bobo2b2o2b2o$32b3o7bo33bobo
2b2o3b2o$29b2o2b2o6b2o33bob2o4bobo$29b2o2bo3bo2bobo40b3o$29bo2b2o41bob
2obob2o$25b3o46b3ob3o3bo$24bob2o53bo2bo$23bo3bo45b2o8b2o$22b2o3bobo42b
o4bo4b2o$21b3o3bo2bo41bobobo5b2o$20b2o2bobo44bo4bob2ob2o$21bo8bo41b3ob
o4b2o$19b4obo3b2o42bo3bo$19bo4b6o53bo$19bobo4b3o43bo3b4o4bo$19b2o5b2o
44bo3b2o2bo2bo$18bo6bo46bo4bo$17bobo4b2o49b3o3bo$17bo2bo2bo47b2o4bob3o
$16bo2bo4b4o43b2o2bo2bo3bo$16bob2o3bo3bo42bob3o4b2o$11b2obo3bo5bobo43b
o$11bo3bobo6bobo42bobob2o4b3o$10bo2bobobo50b2obo3b4obobo$10b2o3bob2obo
47b2o4b2o2bob2o$13bo3bo2bo50bo3bo2bo2b3o$9b4o2b2o3bo48b3o2bobob3o2bo$
8bo5b2ob3o49bo2bobob2o2b2o2bo$7b7o3b3o49bo2b2o8bobo$6bo7bo2bo52bobo3b
3ob2o$9bo3bo2b2o50bo3b2o7bo$5bo3b4obob3o49bo2b2o2bo4b2obo$5bo7b2obo$5b
o3b2o$7bo2bo4bo$4b3o4bo$4bo4b3obo$3b2obo3bo2b2o$2bo4b2obo2b2o$b2o5bo2b
ob2o$2o5b2o4bo$3b3o3b3obo15$34bo$33b4o4b3o$32bo2b2o2bo3bo$35bo2b2o$38b
2ob2o$32b3o7bo$29b2o2b2o6b2o$29b2o2bo3bo2bobo$29bo2b2o$25b3o$25b3o$24b
o2bo$21bo2bo$20b3o$19bo2bo$18b3obo$19b2o5bo$22bo2bo4bo$22bo2bo3bobo$
21b2o5b2obo$21b2ob2obob2o$25b4o$20b2ob2o3bo$21bo4bo$22bo2b5o$21bo6bob
2o$25b2obo3bo$22bob3obo2b2o$23bobo7b2o$23bobo7bobo$23b3o10bo$24bo5b2ob
o2bo$25bobobo2b2o$29bo5b2o$26bob3o4b2o$27b2o7bo$27bobo2bo6bo$29bob2o4b
4o$30bo4b2o$28b3o2b2o2bobo$27bobo7bo2bo$26b2o4bo5bobo$27b2o3bo3b3o$27b
o5bob2ob2o$27bo2bob2o3b3o$27bob3o2b3o$27bo4bo2b2o$28b3o$27bo4bo$33b5o$
28b2o3bob3obo$30bo2bob2o3bo$32b2o5bo$29b3ob4obo$29b10o$35b2o2bo$27b2o
5bobob2o$27b2o6bo3bo$26bo2bo3b2o4bo$25b2ob2o5bo3bo$25b2ob2o4bo3b2o$35b
o2bo$25b2o2bo5bo$24bo3bobo3bo$23b4o5b2ob2o$22b4o3b3obobo$21bo6bobo2bo
3bo$27b2o4bob2o$26bob2obo$23bob3obo3bob2o$22b3o5b2o2b3o$22bob3o3b3obo$
21bo5b2o4b2o!