Windmills, which are used in the great plains of Holland and North Germany to supply the want of falling water, afford another instance of the action of velocity. The sails are driven by air in motion - by wind. (Hermann von Helmholtz)

Windmills, which are used in the great plains of Holland and North Germany to supply the want of falling water, afford another instance of the action of velocity. The sails are driven by air in motion - by wind.

Hermann von Helmholtz

Related topics

action air drive falling great holland instance north velocity water wind sails

Related quotes