The windmills in Khorasan and Herat had only one angled blade of about nine metres with an inlet; while the windmills in Sistan had 12-metre blades with two inlets.
All the windmills in Iran follow this pattern.
The knowhow of windmill construction has been transferred by the Islamic civilization to the eastern and western parts of Mediterranean sea, and through the islands of Sicily to the northern Europe.
Now only 15 ancient windmills have remained in Sistan and Baluchestan. Some of these historical structures are being restored.
What follows are Mizan News Agency’s photos of these windmills:
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