@PugJesusM to Illustrations of historyEnglish • 3 months agoSimple cutaway of a Roman aqueductimagemessage-square2arrow-up166arrow-down11
arrow-up165arrow-down1imageSimple cutaway of a Roman aqueduct@PugJesusM to Illustrations of historyEnglish • 3 months agomessage-square2
minus-square@PugJesusOPMlinkEnglish9•3 months agoKeeping the gradient steady so the water flows all the way to the destination.
Keeping the gradient steady so the water flows all the way to the destination.