Image: Hydraulic-Powdered Trip Hammers
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Description: A set of trip hammers on an axle rotated by a waterwheel, a machine used to decorticate grain. From the Tiangong Kaiwu encyclopedia of 1637, written by the Ming Dynasty encyclopedist Song Yingxing (1587-1666).
Title: Hydraulic-Powdered Trip Hammers
Credit: Own work (My book)
Author: PericlesofAthens
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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