Paddle wheel und saw: was sie gemeinsam haben
- Schritt 1. Paddle wheel — funktioniert wie — Water wheel. A water wheel in reverse: instead of water turning the wheel, the wheel pushes the water.
- Schritt 2. Water wheel — ist Teil von — Sawmill. Early sawmills were driven by water wheels.
- Schritt 3. Sawmill — nutzt — Saw. The cutting tool is a saw.