Back when I read Dune as a teenager I didn't know what a qanat was and I didn't bother looking it up. I might have to read it again with this new understanding.

Back when I read Dune as a teenager I didn't know what a qanat was and I didn't bother looking it up. I might have to read it again with this new understanding. I seem to remember them featuring quite a bit in Children of Dune.