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~ Santorini windmill ~

~ by katherine & anastasios ~

This is a particularly lovely example of a relatively simple but very practical working windmill .
The drive shaft ( which takes power to the machinary inside the mill ) has 12 wooden poles ( spokes ) radiating out from the center and these support the sails of the mill .

3 X 4 = 12 spokes on the drive shaft

A wire forming a complete circle connects each end of the spokes helping to support the structure .
Each spoke has triangular cloth sail attached to it .
Two of the points of the triangular sail are supported by the middle and the end of the spoke while the third point is supported on the parimeter circle wire .
What is really clever about the design is that the trangular sails can be wrapped round the spokes so that the area of the sail can easy be adjusted .
So on a windy day one can wrap a lot of the sail material around the spokes to make smaller triangular sails , while on days of little wind the sails can be un-wrapped to make a larger area to the wind .

One of the 12 triangular sails partly wrapped around its supporting spoke - set up for a good breeze !
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