building and experimenting with models of machines
Zubrowski, Bernie
1986
Instructions for using readily available materials to make models of machines such as pulleys, windlasses, and water wheels, with suggested experiments to demonstrate their capabilities.
Contains step-by-step directions for constructing wave making models and more than fifty experiments using these models to discover the world of waves.
Instructions for using readily available materials to make working models of different kinds of clocks with suggested experiments to discover how they work.