Topic
windmill.
machine that converts the energy of wind into rotational energy by means of adjustable sails
The journal
Open the journal →The conversation starts in the journal — be the first to post.
About windmill
A windmill is a machine operated by the force of wind acting on vanes or sails to mill grain (gristmills). Windmills were used throughout the high medieval and early modern periods; the horizontal or panemone windmill first appeared in Persia during the 9th century, and the vertical windmill first appeared in northwestern Europe in the 12th century.
Everything about windmill →