# Hushing **Entity Type:** Skill ## Properties | Field | Value | |-------|-------| | Category | Economic | | Type | Discovery | | Knowledge Cost | 46,000 | ## Description Hushing is an Economic skill that unlocks the Aqueduct Boost for Mines. This allows all mines to benefit from hydraulics via aqueducts, significantly increasing their productivity. Hushing was a historical Roman mining technique that used water released from reservoirs to expose ore deposits. ## Effects Unlocks: **Aqueduct Boost: Mines** - Allows all mines to benefit from hydraulics via aqueducts - Increases mine productivity when connected to the aqueduct system ## Unlock Requirements - Choose the Celtic path in Albion - Host Smiths in your realm This is a Discovery-type skill, which makes up the majority of skills in the Anno 117 skill tree. To research it, you must first reach it via a research path. ## Related Skills Other skills in the Economic category: - Albionic Research - Aqua Arborica - Untapped Soil - Gobannus-Model Bellows - Villa Retinue - Paved Roads - Better Bellows - Beaver Bother - Blind Faith - Blood of Terra - Depotism - Depots - The Flight of Birds - Beneath Bedrock - Deep Depots - Drainage - Cyclopedic Research - Duct Irrigation - Firmer Foundations - Fish Markets - Healthy Competition - Abyssal Invocation - Well-Ordered Warehouses - Pier-to-Pier Trading - Seaport Specification - Hurried Horrea - Raising Sluices - Honeyed Arbour - Quays - Trading Post Improvements - Warehouse Refinement - Warehouse Organisation - Latin Research - Albionic Loyalists - Mackerel Hauling - Metallurgical Research - Monumental Research - Wetland Research - Sewing Circles - Replanting - Phlogistic Research - Albionic Pillars - Harbourmastery - Safe Havens - Harbour Grandmastery - Reservoirs - Marsh Services - Ulex & Agogae - Vino Veritas - Water Conservation - Woodland Rebirth - Extra Horse Power ## Source - [anno.land - Hushing](https://anno.land/en/anno-117-skills/hydraulischer-bergbau/)