Wooden post und watt steam engine: was sie gemeinsam haben
- Schritt 1. Wooden post — ist Teil von — Shaduf. The post is the fulcrum of the lever.
- Schritt 2. Shaduf — wird verwendet in — Well. Or with a well sweep.
- Schritt 3. Well — nutzt — Windlass. The bucket was raised with a windlass.
- Schritt 4. Windlass — nutzt — Kurbel. The handle of a windlass is a crank.
- Schritt 5. Kurbel — ist Teil von — Watt steam engine. The stroke of the piston becomes rotation of a shaft (Watt first used a planetary gear).
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