Researched
Shaduf, Qanat & Water Lifting
The shaduf lever lifts water to fields in Mesopotamia by about 2000 BC; qanats in Persia and the Archimedes screw follow.
Open in the interactive tree →Machines to lift or tunnel water let farmers irrigate land above the river and in dry plains. Qanats carried groundwater for kilometres without pumps.
Prerequisites
- Irrigation~6000 BC
Unlocks
- Center-Pivot & Drip Irrigation1948-1965Centre pivots and drip lines still depend on lifting water to the fields