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[da_nang]

Water freezes during winter, so it's either underground or heated with magma. I'll go with the latter. Screw simplicity and go right to the dwarfy way.

[Dariush]

Screw simplicity and go right to the dwarfy way.

Going dorfy way is fine by me; The bad news is that I certainly won't fit in one year and if I don't complete both the battery and the pumpstack during my year, it'll sit forgotten until my next turn.

[Teneb]

near the crusher entrance (south, I belive), you'll see a square made of walls through wich flows the river, with stairways for entrances. I was going to set up a water reactor there. Remember to place magma below that, however

[Dariush]

Uh. Would the water wheels work if there's ice to either side of the magma-heated part of the river?

[da_nang]

As long as there's flow, they should work. Now, should the ice form a plug up the river somewhere, then that might stop flow. If it's down the river, then it shouldn't stop the flow. Assuming the water flow follows RL physics.

If push comes to shove, apply more magma. Cover the whole river with it so that it stays in contact with magma-heated surroundings.

[Dariush]

If push comes to shove, apply more magma. Cover the whole river with it so that it stays in contact with magma-heated surroundings.

I won't be able to dig out the edge tiles of the river to put magma in there, so that's impossible.

[da_nang]

Damn. And we can't floor over the river there either?

What about this: Perpetual motion powerhouse encased in a three-layer shell, stone, magma, stone. As long as the path of the moving water block (and water basin) stays in constant contact with magma-heated surroundings, it shouldn't freeze.

Like this:

Front view

         G
smssssssssms
smsW%Wsms
smswwwsms
smsssssssms
smmmmmms
sssssssssssss

s = stone
m = magma
W = Waterwheel
% = Pump
w = water
G = gear assembly.

[Dariush]

Uh. If we're resorting to DWR's I could as well use some cavern. I wanted some honest-to-physics action.

[da_nang]

Unless you can find some way to keep the water in touch with magma (without obsidianizing), there's not much you can do about the freezing. The only other way I can see it working is if the water physics is warped so as to create flow between two ice plugs. That or creating artificial flow in the river.

[Teneb]

The river is plugged with obsidian anyway. I tried to unplug it but it ended with a small maga flood.

I suggest digging a new river bed 2zs below the surface, diverting it's course there and making it flow off the map.

[Dariush]

making it flow off the map.

Which again brings us to the problem of it being impossible to dig edge tiles.

[MarcAFK]

Smoothe then fortify the edge, fluids can then pass through..

[Dariush]

Still, this would require fully digging out two z-levels AND heating the river source...

And DWRs are simply dorfier.

[Teneb]

Still, this would require fully digging out two z-levels AND heating the river source...

And DWRs are simply dorfier.

Weren't you complaining about physics? And besides, more work and more complicated = more dorfy, always

[da_nang]

The river is plugged with obsidian anyway. I tried to unplug it but it ended with a small maga flood.

What can I say? The Great Flood required drastic measures. Besides, Project F.U. Brook was a dorfy success.