PugJesus@lemmy.worldM to Illustrations of history@lemmy.worldEnglish · 2 days agoSimple cutaway of a Roman aqueductlemmy.worldexternal-linkmessage-square2fedilinkarrow-up163arrow-down11
arrow-up162arrow-down1external-linkSimple cutaway of a Roman aqueductlemmy.worldPugJesus@lemmy.worldM to Illustrations of history@lemmy.worldEnglish · 2 days agomessage-square2fedilink
minus-squarePugJesus@lemmy.worldOPMlinkfedilinkEnglisharrow-up10arrow-down1·1 day 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.