Ars Magica Fusing stone together by magic
From: Mutant for Hire Posted on: 4/21/2005 1:41 pm
To: ALL
Message: 616.1

There is a spell I'm thinking of composing which I'm not totally certain breaks the limits of Hermetic magic or not.

The spell is a fairly simple one in concept. The idea here is for a spell to join together two pieces of stone. The method is to soften them to clay using MuTe and then to use ReTe to join them as one. The claylike softness fails when the MuTe effect wears off. The question is whether the joining that was done while the rock was softened would be undone when the MuTe effect wore off.

The fundamental concept behind this spell is to make a Covenant (or at least a sanctum) less drafty.

From: SirGarlon Posted on: 4/21/2005 4:45 pm
To: Mutant for Hire
Message: 616.2
in reply to: 616.1
For what it's worth, I think this would work fine. Muto to make the rock pliable, Rego to stick the pliable pieces together, and when the Muto wears off they stay stuck. Seems perfectly legitimate to me.
From: abrahamray Posted on: 4/21/2005 6:00 pm
To: SirGarlon
Message: 616.3
in reply to: 616.2
a similer ritual might fuse diamonds together(maybe to make some sort of giant drill perhaps?)
From: StevePettit Posted on: 4/21/2005 7:16 pm
To: ALL
Message: 616.4
in reply to: 616.3

Ah, but first to find the diamonds, which come from far away India (via Caravans) to the west. Yes, yes, a CrTe ritual would do the same thing, but I think there are better uses for the 5 pawns of vis (which gets you 1 cubic inch / 16.4 cm^3 of rough diamonds). The question is Why would you want to make such a thing, when magic can do the job much simpler (Precision Perdo effects are fun!)? (Most diamond drills are high alloy (good concentrations of Nickel, Cobalt, Chrome, Vanadium, Molybdenum, Titanium, Tungsten, etc) content steel, with diamonds on the cutting edges of the bit - the stresses at the cutting end are enormous, and a simple steel bit would twist in 2...)

Seems like the aformentioned effect would be simple enough to do, since Rock to Viscid Clay (Ars5, pg 154) does mostly the same thing; You could trowel the clay-like rock into place easily by hand. Likewise, a simple modification to this spell and you could pour the water-like rock into place...

I see no problems in using either a more advanced version (MuTe(Re), perhaps L20), or a combination of 2 simple spells to get the job done.

Steve

From: Mutant for Hire Posted on: 4/22/2005 12:38 pm
To: ALL
Message: 616.5
in reply to: 616.1

Thank you for the commentary. I'm thinking about ways that Magi could build a Covenant using magic, especially if they didn't want to waste Vis using "Conjuring the Mystic Tower".

One method, if there's a ruin already is to bring in additional rock (to replace what was already lost to erosion) and then use the MuTe spell above with Rego and Creo requisites to restore the tower and if anything even improve on it by fusing mortared stones into a solid creation.

Another one is to use ReTe to haul the rock up and then MuTe with Rego to mold a tower into shape. A higher level spell probably than CrTe, but it has the advantage of not requiring Vis.

From: ArsBrevis Posted on: Jun-6 5:49 pm
To: Mutant for Hire
Message: 616.6
in reply to: 616.5

// I'm thinking about ways that Magi could build a Covenant using magic, especially if they didn't want to waste Vis using "Conjuring the Mystic Tower".//

Let's see... you could start with a craggy mountaintop, and lay a very long rope on the ground in a loop. Cast CrTe with Target Circle to preserve the stone inside the boundary from destruction. Then you step back to a safe distance, and PeTe the whole of the rest of the mountaintop, down to a certain depth, leaving a cylindrical stone column.

Fly up to the top of the column, break the ring and shorten it by 20 paces to make a concentric circle. The you PeTe all the stone inside the boundary, down to the same depth, to give yourself a circular tower of unbroken stone with walls about ten feet thick. Some finishing touches will be required for a habitable building. Of course, I'm assuming that Hermetic circles can work downwards as well as upwards (and sideways if you use the same technique to make windows).

You can also simply CrTe a tower with duration ring, but there are several good reasons for not living in one of those.

From: spuwdsda2 Posted on: Jun-6 7:45 pm
To: ArsBrevis
Message: 616.7
in reply to: 616.6


You are assuming the rock has no factures. Mountains are thrust into the sky by tectonic forces, generally speaking I believe they are shot through with factures.

Buildings were cut out of solid rock, but the only examples I know of are sandstone. Large desposits of sandstone exist that are contiguous.

Iirc LoFaI had a spell tunnelling spell that mended the rock as it went.

Regards

- David W

From: ArsBrevis Posted on: Jun-8 7:10 pm
To: ArsBrevis
Message: 616.8
in reply to: 616.7

I did wonder about that. You might need to use your Intellego to find a place where the rock was solid and unbroken. Ancient civilisations sometimes erected granite stelae over thirty metres tall, and I think the limit was the size of the block they could move, not the size they could find.

On the other hand, even with fractures, many cliffs of a variety of rocks are steep, almost vertical. A tube would have more difficulty supporting itself - at a minimum, it would be safer to do without windows and light the tower by magic.

From: Nzld Posted on: Jun-8 9:49 pm
To: ArsBrevis
Message: 616.9
in reply to: 616.6

I personally would frown on allowing the Circle target to be used in this manner (and disallow it). It seems like an exploitation, treating it as a simple mechanic or tool, rather than as a mystical aspect of magic.

On another note, I'm not sure if it carried to 5th Ed., but in 4th Ed. several of the Ring duration spells indicated the area of effect formed a dome over the ring. I would extrapolate that to imply a full sphere at best, and would assume the same for Circle targets.

In my opinion, I would allow direct PeTe spells and simply require Finesse rolls to achieve the desired effect. I might also require some degree of engineering on the part of the magus to achieve a sound design.

From: ArsBrevis Posted on: Jun-10 6:52 pm
To: Nzld
Message: 616.10
in reply to: 616.9

// I personally would frown on allowing the Circle target to be used in this manner (and disallow it). It seems like an exploitation, treating it as a simple mechanic or tool, rather than as a mystical aspect of magic.//

But that's what a theory of magic is for: to turn mystical phenomena into tools. Magi should be able to exploit the rules of Hermetic magic in any way they can devise. Naturally, players exploiting the rules of the game are another matter, and you can frown on that all you like. It would also be a different matter if Cicrcle targets were not fully understood in Hermetic theory.

A possible theoretical approach is to consider Circle, Room and Structure as special cases of Boundary. It seems Boundary spells can affect phenomena underground (The Bountiful Feast must affect root crops), and high above (Calling the Odious Drought influences rainfall). In the case of a Circle, you could have the ground form a lower boundary, or not - either would be consistent.

The text implies that Circle spells can only affect individuals, not parts, which I think is a good idea. This would disallow my first Circle above, but I think a ReVi Circle could achieve the same effect. (The second Circle can easily be replaced with an enhanced version of Pit of the Gaping Earth.) I note in passing that all the Circle spells in the rulebook are limited to preventing things from crossing the Circle and, by implication, from affecting the Circle itself. If necessary to prevent exploits, that could be an extra restriction on such magic.

// On another note, I'm not sure if it carried to 5th Ed., but in 4th Ed. several of the Ring duration spells indicated the area of effect formed a dome over the ring. I would extrapolate that to imply a full sphere at best, and would assume the same for Circle targets. //

Good point - 5th Edition says many of the wards look like domes, which does suggest the actual effect is spherical/hemispherical. A sphere is very logical and Neoplatonic, but it makes it difficult for a maga to ward herself quickly or in a confined area, even if crouching down. That problem is probably acceptable, but I dislike warded creatures flying overhead and dropping things - it should require more ingenuity to bypass a ward.

I'd be happy to make a Circle spell affect all things in a cone extending from the centre of the Earth to the lunar Sphere. That would fit in the Medieval paradigm, and constrain the Circle to act vertically. With some handwaving it can be made consistent with the domed appearance (the sphere is holding the cone open, say).

Thought experiment: what happens if a magus on a clifftop casts a small but strong Circular Ward Against Demons, and then a powerful devil attempts to destroy the whole cliff? I would like to leave the magus standing on an isolated pillar of stone, because the Circle extends downwards, and it protects a part of the cliff just as it would protect the air inside the circle. Other possibilities would be:
The magus is left standing in midair, looking like Wile E. Coyote, because the Circle does not extend below the ground.
The magus is left standing in midair, again LLWEC, because the Circle cannot protect only part of something.
The magus is left standing on a hemisphere of stone in midair, LLWEC, because the Circle affects a sphere.
The Infernal power fails, because the Circle includes part of the cliff. (I don't like that, because a cliff isn't an individual.)
The Infernal power either fails, or leaves the magus on a pillar, because the spell prevents it from harming him. (This is the literal reading of the description, but I don't like it, because it implies intelligence on the part of the ward.)

The cone idea also means a demon summoned into a Circle can be more of a nuisance, e.g. using his powers to dominate someone upstairs.

I think PeTe with finesse would be okay too, but it would take a lot of skill, given the difficulty of targeting parts. I guess a square tower would be the easiest shape.



Edited 6/10/2005 6:59 pm ET by ArsBrevis
From: Nzld Posted on: Jun-10 7:29 pm
To: ArsBrevis
Message: 616.11
in reply to: 616.10

/// I'd be happy to make a Circle spell affect all things in a cone extending from the centre of the Earth to the lunar Sphere. That would fit in the Medieval paradigm, and constrain the Circle to act vertically. With some handwaving it can be made consistent with the domed appearance (the sphere is holding the cone open, say). ///

Isn't the Earth still flat at this point?

You have obviously given this a lot of thought, so I say go with it. If it fits your saga, great! I still wouldn't allow it.

As for demons and mountain-smashing... frankly, if a demon has the Might to destroy a mountainside to get to you, it's probably A) powerful enough to walk right through the ward, or B) powerful enough that it doesn't need to walk through the ward or shatter the mountainside... it has all the time in the world to corrupt your soul, and plenty of minions and machinations at its disposal.

From: niallchristi Posted on: Jun-10 8:11 pm
To: Nzld
Message: 616.12
in reply to: 616.11

"Isn't the Earth still flat at this point?"

No; this is a popular misconception about the Middle Ages. The earth was actually known to be a sphere at this point in history.

Cheers,

Niall

From: Njordi Posted on: Jun-13 4:28 am
To: Mutant for Hire
Message: 616.13
in reply to: 616.1
In our campaign we've used a similar principle. Not on the entire covenant building mass, but we're considering using it to build a protecting stone wall.
We're planning to just use a modified version of Rock to Viscid Clay, which affects very large amounts of stone, and perhaps turns it into something even easier to work with than clay (sand or mud). Before that is done we will have grogs (preferably led by an engeneer) have made lots of wooden crates which will be used as moulds.
The modified stone is then scouped into the moulds, by hand. Grogs must be put to work for idle hands do no good;)
When the magic then wears off, we will have building blocks which we can use to construct virtally any type of stone building (at least the outer framework) we would like, and it should be pretty strong and durable.
A higher level spell with rego req. wasn't a half bad idea however. We will look into the usefullness of this, perhaps for slightly other uses.

Edited 6/22/2005 5:19 am ET by Njordi
From: PELLINOR Posted on: Jun-13 7:29 am
To: Njordi
Message: 616.14
in reply to: 616.13

Just make sure you get them to clean their tools, boots and hands properly afterwards...

Cheers,

Pell.R.

From: Njordi Posted on: Jun-13 9:37 am
To: PELLINOR
Message: 616.15
in reply to: 616.14
Yeah, nagging our elementalist at the end of each workday to turn the stone on their clothes and equipment into water will probably just piss him off pretty fast. He will be anoyed enough about having to cast the initial spell to transform the stone into a workable material each morning ;)
From: Draco Posted on: Jun-13 10:04 am
To: Njordi
Message: 616.16
in reply to: 616.15
Suggestion for him: Craft a magic item that does the same thing as the spell. That way he will never have to be bothered with this lowly work again.
From: Njordi Posted on: Jun-13 12:15 pm
To: Draco
Message: 616.17
in reply to: 616.16
Yeah, that is in the works, but currently neither time, vis supplies nor number of labs will allow one sesons work for this purpose.
A couple of years down the line probably, it will be done.
Making items for purposes like this has certanly been made more easy btw. Suddenly it's a sensible option, as oposed to senless, blatant luxury.
From: daoc2k Posted on: Jun-13 11:18 pm
To: Njordi
Message: 616.18
in reply to: 616.15
i think water would still be semi not good. It is just gonna clog up some drainage area somewhere when the duration runs out. Can you just destroy the stone with a Perdo terram effect? I think it would be easy....heck make a wooden circle and cast the perdo spell with target circle (better have everyone stand on a wooden floor) if the spell destroys all stone in the area it should be pretty low level.

Edited 6/14/2005 12:27 am ET by daoc2k
From: ArsBrevis Posted on: Jun-14 6:42 pm
To: Nzld
Message: 616.19
in reply to: 616.11

On reflection, I have to agree that Circle targets must be spherical. That's the most straightforward interpretation of the descriptions, whereas a cone would encompass a very large amount of material, most of it out of range of the magus's senses. I don't mind missing out on a way to build neat towers so much as the fact that it makes wards fairly minor hindrances to enemies. Besides dropping and pushing things through the top, they can undermine the sphere, which would usually make the Ring collapse.

But back to the topic. Turning stone into malleable clay and back again is more or less reinventing concrete (which I believe was known to the Romans, but forgotten in Medieval times). You save on stonemasons, but you will still require skilled builders, and your tower will take as long to erect as a mundane 13th-century stone building (Notre Dame de Paris, say).

A more elaborate wheeze would be to create a temporary structure to form the core of your tower, change some rock to a thick liquid, and pour it down the outer surface of your mould. Let the spell expire to deposit the stone like a stalactite. Muto, rinse, repeat. You will need to get enough rock in place to support its own weight before the original Creo expires (probably best to build it one storey at a time). The unusual dribbly candle texture will make it clear to everyone that this is a very special building.

I considered changing stone to Auram, and using a small twister to whirl it into a cone, but I thought it would disperse too fast, leaving you with dust, or at best very crumbly pumice. Perhaps a powerful ReAu could keep it in shape, but you could more easily change it to sand and use a similarly high-level ReTe.

Another possibility is to temporarily Conjure a Mystic Tower, and then use a hitherto-unknown ReTe spell to exchange it, bit by bit, with natural stone nearby. It's best to make the tower a different colour from your building material, so you can see which what you've swapped. I don't see any spells for exchanging pairs of objects (let along pieces of objects), so I expect this would require a load of research. Perhaps you could simply use a teleportation ritual (ReTe 60 or so) to pinch a tower from someone else's castle, but that would probably arouse unfavourable comment.

More difficult, but interesting if successful, is to use InTe to speak to a large rock, and persuade it to shape itself into a home for you. You would still need to find some way of empowering it to move, of course, and you may find that the shape it wants to assume isn't ideal for your purposes. You may also find that it likes to move ... very ... very ... slowly.

From: Ravenscroft Posted on: Jun-15 11:06 pm
To: ArsBrevis
Message: 616.20
in reply to: 616.19
Sorry , but i dont get the problem with 'Conjure the Mystic Tower'.
Its a Creo ritual , and therefore permanent and made of stone (Base 03)
If you want a slightly different Tower , Base 03 also makes Glass , so you could have an 80'high & 30'wide Shiny Glass Tower with a Foundation set 20' into the ground.
Glass this thick is not particularly fragile.
An Imaginem req would allow you to have the Tower appear to scintillate with Color (from the outside preferably).
From: erik_tyrrell Posted on: Jun-18 10:35 am
To: Ravenscroft
Message: 616.21
in reply to: 616.20

Sorry" , but i dont get the problem with 'Conjure the Mystic Tower'."

I believe that the problem is that as a ritual it consumes vis to cast it. The people posting are brainstorming ideas for destitute magi for whom seasons of work are less valuable than vis.