The ancient Persians built windmills with vertical shafts 1,000 years ago to grind seeds.
They are located in Nashtifan in present-day Iraq and can still function.
[Source: http://www.iflscience.com]
1,000 year old windmills still working
The ancient Persians built windmills with vertical shafts 1,000 years ago to grind seeds.
They are located in Nashtifan in present-day Iraq and can still function.
[Source: http://www.iflscience.com]