Wooden post und oil lamp: 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 — ist hergestellt aus — Stone. The walls of wells were lined with stone.
- Schritt 4. Stone — ist Material für — Oil lamp. The first lamps were stone bowls (Lascaux).