This science ClipArt gallery offers 14 illustrations of methods to produce power with air, including windmills.

A Windmill in the Netherlands.

Dutch Windmill

A Windmill in the Netherlands.

This illustration displays an elevation view of the proa. A proa is a type of sailing vessel with multi hulls.

Elevation View of Proa

This illustration displays an elevation view of the proa. A proa is a type of sailing vessel with multi…

This illustration displays an end view of the proa. A proa is a type of sailing vessel with multi hulls.

End View of Proa

This illustration displays an end view of the proa. A proa is a type of sailing vessel with multi hulls.

This illustration displays a plan view of the proa. A proa is a type of sailing vessel with multi hulls.

Plan View of Proa

This illustration displays a plan view of the proa. A proa is a type of sailing vessel with multi hulls.

Windmill

Windmill

Windmill

A mill turned by the wind.

Windmill

A mill turned by the wind.

A windmill

Windmill

A windmill

A machine turned by the wind and designed to furnish motive power, as for pumping or for operating mills. Machines of this kind came into use in Europe about the 11th century, but the form was very different from those now used in the United States.

Windmill

A machine turned by the wind and designed to furnish motive power, as for pumping or for operating mills.…

A windmill is a machine that is powered by the energy of the wind. It is designed to convert the energy of the wind into more useful forms using rotating blades or sails. The term also refers to the structure it is commonly built on. In much of Europe, windmills served originally to grind grain, though later applications included pumping water and, more recently, generation of electricity.

Windmill

A windmill is a machine that is powered by the energy of the wind. It is designed to convert the energy…

A windmill is a machine that is powered by the energy of the wind. It is designed to convert the energy of the wind into more useful forms using rotating blades or sails. The term also refers to the structure it is commonly built on. In much of Europe, windmills served originally to grind grain, though later applications included pumping water and, more recently, generation of electricity.

Windmill

A windmill is a machine that is powered by the energy of the wind. It is designed to convert the energy…

Fixed windmills, oriented to the prevailing wind were extensively used in the Cyclades islands of Greece. The economies of power and transport allowed the use of these 'offshore' mills for grinding grain transported from the mainland and flour returned. A 1/10th share of the flour was paid to the miller in return for his service. This type would mount triangular sails when in operation.

Fixed Axis Windmill

Fixed windmills, oriented to the prevailing wind were extensively used in the Cyclades islands of Greece.…

An ancient windmill dating back to the medieval era.

Medieval Windmill

An ancient windmill dating back to the medieval era.

Old Fashioned windmill in a field.

Old-Fashioned Windmill

Old Fashioned windmill in a field.

This windmill is a machine which converts the energy of wind to rotational motion by means of adjustable sails. The main use is as a grinding mill powered by the wind, reducing a solid or coarse substance into pump or minute grains, by crushing, grinding, or pressing. Windmills have also provided energy for obtaining fresh water from underground or drainage.

The Renewable Energy Source of Windmills

This windmill is a machine which converts the energy of wind to rotational motion by means of adjustable…