Archived posting to the Leica Users Group, 2016/06/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> On Jun 6, 2016, at 4:01 PM, Tina Manley <tmanley at gmail.com> wrote: > > According to Tom's notes, it is from 197 AD. The whole water system is > very impressive. In Iran alone, there are an estimated 50,000 qanats, > nearly three-quarters of which are still working. They knew what they were > doing! > > Tina > > On Mon, Jun 6, 2016 at 4:48 PM, Peter Dzwig <pdzwig at summaventures.com> > wrote: > >> Amazing piece of technology ;-) Who needs laser levels and the like. How >> old is >> this one, do you have any idea? >> >> Peter >> >> On 06/06/2016 14:41, Tina Manley wrote: >>> >>> We went to a water museum in Yazd that explained all about the ganats and >>> how water use was allocated. There was a lot of interesting information >>> and many displays but I found the ancient level used to determine the >> slope >>> of the ganats to be most fascinating: >>> >>> >> http://tinamanley.photoshelter.com/gallery-image/Iran/G0000YmlbTddL96g/I0000aSa4vH2oM34 most remarkable Regards, George Lottermoser http://www.imagist.com http://www.imagist.com/blog http://www.linkedin.com/in/imagist