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Emirate of Cordoba (Age of Charlemagne) Civil Tier 4

Water Power

Before the advent of industrial mechanisation and electric power, harnessing the power of flowing water was the most effective method of generating energy for industry and agriculture. Water wheels and mills were known to have been used throughout ancient Rome and India, whereby the flow of a river (or, in Medieval times, the tide) turns gears and belts to generate power for irrigation. A process known as 'hushing' was developed during the 1st century AD and had been widely adopted by the dawn of the Middle Ages. Hushing is the deliberate and targeted use of torrents of water to wash away layers of soil and debris around seams so that they could be mined, with a sluice gate opened to control the strength of the water flow. In an era before explosives, hushing was an excellent method of revealing the minerals and wealth of the earth - and is still used to some extent in cases where explosives are deemed too destructive to the area being mined.

Node Set Civil Tier 4

research_points 0

cost_per_round 0

Effects

No Effect

Requires
Requires Technologies	Book Collection

Enables
Enables Buildings	Ship Mill Lumber Camp