PugJesus@lemmy.worldM to Illustrations of history@lemmy.worldEnglish · 3 days agoSimple cutaway of a Roman aqueductlemmy.worldimagemessage-square2fedilinkarrow-up166arrow-down11
arrow-up165arrow-down1imageSimple cutaway of a Roman aqueductlemmy.worldPugJesus@lemmy.worldM to Illustrations of history@lemmy.worldEnglish · 3 days agomessage-square2fedilink
minus-squarePugJesus@lemmy.worldOPMlinkfedilinkEnglisharrow-up10arrow-down1·3 days 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.