Cave temp is almost always the average of the year-round temp in the area (sum of the average daily temperatures all year, divided by 365), and varies based on direct air exchange with the surface. If a cave's temp is rising as you go down, that's either because of local geothermal activity, or because the outside air at the moment is colder than the average yearly temperature.
Caves just don't go deep enough to get a consistently generalizable influence from the geothermal gradient, it's an entirely locally-determined influence.
It looks like a lot of people are looking up geothermal gradients and missing that those are for solid ground, not caves which exchange air with the surface.
user15026
1:45 AM
@BESW I have a feeling the last one is the right of it.
I'm always tempted to get upset when the Rogue makes an ability check, and then treats a nat 1 as a 17, but then I'm like "okay, but I can never be charmed/feared/possessed/pretty much anything that depends on failing a Saving Throw" and feel better.
@BESW I'll try to this bring up 'back home'* once/if I understand where things are wrong well enough to convey. I'm getting the point about caves IRL not going miles deep. But do I understand correctly that the statement about mines requiring artificial air circulation/cooling because the one they get 'naturally' is insufficient (and that they tend to be hot deep below), outright wrong?
* == 'Back home' referring to the forum. It's not the first time when a random handwave gets replaced by an attempt to provide a playable approximation based on a simplified understanding of a phenomenon, only to be further corrected and improved by criticism after publication. So if the author got things wrong rather than just oversimplified, it's a good reason to find what went wrong and what's the right way to handle it.
Yes, mines need cooling. But it's not primarily because of geothermals. It's because of the heat generated by the mining operation.
Mining machinery and personnel both create heat, and bringing in fresh air to breathe creates heat because the systems pressurize the air.
The deeper you go, the harder it is to naturally ventilate and the more the air compresses. Geothermal gradients work against you less because they're warm, and more because they're resistant to thermal changes: the only way to get to heat your mining operation generations out of your mines, is to siphon it out by cycling air or water. And the deeper you go, the harder it is to do that efficiently because you have to move the air/water mediums futher.
@vicky_molokh You're welcome. Do note, I'm not an expert. I studied my local geology a long time ago and did some digging into Google scholar today to help re-affirm my impressions of how all this works.
Searches like "why do mines need cooling" are really fascinating.
Up above I linked a study where they modeled cave thermals in order to predict bat nesting patterns.
So. cool.
But I started with just observing that geothermal gradients are about heat propagating via conduction through solid ground, while caves allow for fluid convection models.
It didn't seem reasonable to conflate the two, so I went digging.
@BESW I must be missing something. 'A latitude where the average annual T(e) is 38C'. Is that right? Does Northern Antario has such a high average annual environmental temperature (outside the cave)?
* Ontario
Either I'm misreading what T(e) means, or 38°C is a lot for it.
@kviiri I think of it as more Thunder-Cats-y. It's a mashup of all of those sorts of things.
> To say Masters of Umdaar is sci-fi/fantasy is certainly accurate, but a bit too broad. If we had to narrow it down, we would call it Planetary Romanticism. Avoid the sci-fi pitfalls of making it just about how technology works and how advanced it is. Instead, make your adventure about the emotions that the heroes and heroines feel: the joy of exploring a new frontier, the suspense of an unopened treasure chest, and the fear of a strange new monster emerging from the shadows. In Masters of Umdaar, we’ve drawn the lines between good and evil in pretty thick, distinct lines. This is an inten…
The general aesthetic of Umdaar is common to Thundercats, He-Man, She-Ra, etc: heroic sword-and-sorcery fantasy in a world that seems to have once been ruled by a mechanically advanced society which experienced an apocalypse so long ago that now the remnants of their tech are overgrown and legendary.
The line between tech and magic is purposely undefined, often there's interplanetary space travel in the background, many of the people are humanoid animals but usually "regular" humans are also present. There's battles between good and evil to control tech/magic in order to rule/save the world.
As a GM I find it really fun because I can do amazing epic setpieces without justifying them at all, and I can be super derivative and it fits right in.
We had a desert where instead of sand it was perfectly round balls of colored glass ranging from dust to mountainsized.
And you get to be waaaay over the top with your NPCs.
For example, I had the villain Queen Vulturra:
> Concept: Cunning and Tyrannical Sorceress Queen Motive: I must bring Umdaar to its knees Personal: The Staff of Seven Calamities Shared (General Sko-Larr): Good advice is hard to bind
And her General Sko-Larr:
> Concept: Methodical Technomage Ghost Motive: I must possess the Power Cosmic Personal: Eternally patient Shared (Queen Vulturra): Bound to serve the Queen
Sko-Larr was a lot of fun. He was immune to physical damage but vulnerable to bright light. He could read minds and was a metal-bender and whenever he successfully dodged an attack he could move a zone for free.
And then there was Master Appa-Tax:
> Concept: Fantabulous Queen of the Dinosauroids Secret: Recently undead Ambition: I will unite the reptilians Artifact: The Diadem of Command
And her Philosoraptor Advisors:
> Concept: Psychic raptor twins Motive: We must moderate the Queen's excess Artifact: The Goggles of Insight and Hindsight
@kviiri One thing about the flexibility? It really helps support co-GMing or round-robin GMing.
Somebody else at the table can run their own episode and it can be COMPLETELY out to lunch compared to everything else in the campaign but whatever! It's just That One Weird Episode.
@vicky_molokh The links are greatly appreciated. No, your links are a new addition to the discussion! Please do look at the answer given by @minnmass and his last comment.
eh, I don't see much to distinguish it from every other question about a disruptive player where the answer is to either get everyone on the same page about the type of game you're playing or stop playing with that person
@Carcer Which is part of why I am not answering it. The social dynamic of family(sister) and friends being the other players has some aspects to it that suggest to me that the question is a rant more than anything else.
One of the posible wild surges from the playtest barbarian Wild Soul subclass:
Shadows weave around a weapon of your
choice you are holding. Until your rage
ends, your weapon deals psychic damage
instead of its bludgeoning, slashing, or
piercing damage, and it gains the light and ...
@Ash I was actually thinking about the other genre. The one about which one can be reasonably prudish. But hey, since probably everyone here has connected the dots and I've also made a question on anime.SE about a manga with very heavy adult undertones, let's stop beating around the bush (or is it the blush in this specific instance?) and I'll just say erotica out loud(ish).
On the other hand, I had fun writing that sentence.
That said, @Ash, I don't like publishing anyone's Discord contacts in a publicly searchable site like here. I have a way to exchange contacts that's the less complicated I know about, but it needs that we are both online at the same time.
@Zachiel This is an invite to my Discord server, the Spectacularly Bad Plan of Rassilon. There's RPG rooms, and there's a low-key cozy social area. People here are welcome to check it out provided they're ready to be kind and compassionate in my space.
Screenshots of the preview of the final version of the artificer (from Eberron: Rising from the Last War) from Adam Koebel's Roll20 stream: imgur.com/a/rs8Bu7M
(Note: he didn't look at everything, and some things seemed to not yet be up on Roll20.)
@Xirema Let me tell ya, Reliable Talent gets a lot more powerful when your DM lets you use downtime to get proficient in more skills (as is the case with my Wednesday night streamed game) :P
The spell Find Familiar summons a simple yet common creature of the caster's choice (like a cat, rat, raven or weasel). Such a creature's organs all function healthfully, including eating and sleeping. This creature is not a beast however:
Appearing in an unoccupied space within range, the fa...
One of the posible wild surges from the playtest barbarian Wild Soul subclass:
Shadows weave around a weapon of your
choice you are holding. Until your rage
ends, your weapon deals psychic damage
instead of its bludgeoning, slashing, or
piercing damage, and it gains the light and ...
The spell Find Familiar summons a simple yet common creature of the caster's choice (like a cat, rat, raven or weasel). Such a creature's organs all function healthfully, including eating and sleeping. This creature is not a beast however:
Appearing in an unoccupied space within range, the fa...
