Spray bottle und windlass: was sie gemeinsam haben
- Schritt 1. Spray bottle — hat als Teil — Piston pump. A hand pump.
- Schritt 2. Piston pump — entwickelte sich zu — Watt steam engine. The first steam engines (Newcomen’s) pumped water out of mines by driving pumps.
- Schritt 3. Watt steam engine — hat als Teil — Kurbel. The stroke of the piston becomes rotation of a shaft (Watt first used a planetary gear).
- Schritt 4. Kurbel — wird verwendet in — Windlass. The handle of a windlass is a crank.