3 ms·
They remind me of qanats: https://en.wikipedia.org/wiki/Qanat https://en.wikipedia.org/wiki/Qanat
by twic 8y ago
They remind me of qanats:
https://en.wikipedia.org/wiki/Qanat https://en.wikipedia.org/wiki/Qanat
- growlist 8y agoThere was a documentary about these on the BBC maybe 15 years ago, part of a series the theme of which was dangerous places or similar. The presenter walked the length of a Qanat and seemed genuinely worried by the poor state of it in parts, which was unintentionally amusing, but he did make it out in one piece in the end. Can't find it on the web sadly.
- ncmncm 8y agoYes, these are independently invented examples of qanats. The geometry of the access holes resulting in wind-powered water motion is unique.