Windmills grind...
Illustration
Object:
Windmills grind grain. They can set all sorts of industrial machinery in motion and can generate electricity. But none of this comes from the windmill itself. It is the wind that does it. All that a windmill does is catch the wind. It is the whole purpose of a windmill to be moved by the wind. Sailing ships in ages past traveled the face of the whole earth. They transported goods and merchandise and made the exotic familiar. They moved cultures and languages and ideas from one continent to another. The sailing ship shaped the modern world. But none of this came from the ships themselves. It was the wind that did it. The ships hoisted their sails to catch the wind.
