Magma Flow Speed by Quietust

Movie Description:

There is a myth that, in Dwarf Fortress, magma flows more slowly than water.

This is not the case - they flow at the same speed.

Of course, if the water is coming from an infinite source, that's an entirely different (and unrelated) scenario.

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Submitted by: Mechanoid - 2009-10-12

I'd like to see this experiment repeated without the use of a pump to move the magma to it's destination holding room. (IE the magma is flooded into the room normally and then once full, sealed from the source with a floodgate.

Submitted by: Devin - 2009-10-12


Submitted by: Quietust - 2009-10-12

Mechanoid: I don't see how that would make any difference, unless you're under the mistaken impression that pumps impart pressure that persists after they are turned off (hint: they don't).

Submitted by: Lancu48 - 2009-10-13

did not know that..

Submitted by: Kanddak - 2009-10-29

Very nice job, Quietust! An essential piece of mythbusting.
I performed a similar experiment this month, but I got overambitious and set it up to perform several trials, and the resulting video came out too large to post on DFMA. I was going to get around to redoing it but you nailed it.

Submitted by: Quietust - 2013-09-06

A bit of historical perspective: back in the old 2D versions, magma did flow significantly more slowly than water, but when the game went 3D this stopped being the case.


Do you only see a blank space instead of a play button?