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Qanat in Iran [video]
- gnabgib 2y agoDiscussions: 11 months ago (423 points, 100 comments) https://news.ycombinator.com/item?id=38232243 https://news.ycombinator.com/item?id=38232243 8 years ago (186 points, 69 comments) https://news.ycombinator.com/item?id=11719441 https://news.ycombinator.com/item?id=11719441