[Leica] IMG: Ganat Level

[Peter Dzwig]

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
> 

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Dr Peter Dzwig