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by david-given
3689 days ago
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Hah. I've just reread these, and I have been vaguely intending to look up 'qanat' to see if he made the word up. Incidentally, I just came back from a holiday in Madeira --- amazing place if you like mountains; the average altitude of the island is 1300m --- and it's covered with a network of tiny canals called levadas. These collect trickles of water from the high summits, which are usually covered in cloud; it doesn't rain much. So they're kind of the opposite of a qanat. Instead of the water table being underground, it's way up high. https://goo.gl/photos/a7eNGyJtiztiDFA86 Epicly, a lot of the levadas are in grooves chipped into the side of cliff faces. You can just about extrapolate the slope in that picture. Unfortunately in the really scenic bits I was too worried about not falling off to take photos. Safety railings are things which happen to other people in Madeira... |
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