PugJesus@lemmy.worldM to Illustrations of history@lemmy.worldEnglish · 1 day agoAncient Roman water supply diagramlemmy.worldimagemessage-square50fedilinkarrow-up1250arrow-down11
arrow-up1249arrow-down1imageAncient Roman water supply diagramlemmy.worldPugJesus@lemmy.worldM to Illustrations of history@lemmy.worldEnglish · 1 day agomessage-square50fedilink
minus-squareCameronDevlinkfedilinkEnglisharrow-up43·1 day agoSame way a fuel siphon works, as long as the opening is below the inlet, and the rest of the tube is full and sealed, the water will flow. https://en.m.wikipedia.org/wiki/Siphon
minus-squareDonjuanme@lemmy.worldlinkfedilinkEnglisharrow-up7·21 hours agoHow did the Romans seal that apparatus? Cement? Even that would fail rather quickly
minus-squareCameronDevlinkfedilinkEnglisharrow-up7·20 hours agoLead Pipes: http://www.romanaqueducts.info/siphons/siphons.htm Also some terracotta pipes, but not really clear how its sealed.
minus-squareSaintWacko@slrpnk.netlinkfedilinkEnglisharrow-up7·1 day agoIt never would have occurred to me that siphons work that way, too!
minus-squarejaybone@lemmy.worldlinkfedilinkEnglisharrow-up4arrow-down2·1 day agoBy why did they even need one here though?
minus-squarewischilinkfedilinkEnglisharrow-up10·edit-21 day agoBecause it’s simpler to build siphons through large valleys instead of 100 meter high 10 kilometer long aqueducts.
minus-squareDonjuanme@lemmy.worldlinkfedilinkEnglisharrow-up4·21 hours agoBut you have to keep water pressure throughout the length of that tube, how did they do that with their materials?
minus-squaretylerlinkfedilinkEnglisharrow-up4·23 hours agoValley was too deep for the aqueduct but they didn’t want to make the drawing taller just for that
minus-squareKlear@sh.itjust.workslinkfedilinkEnglisharrow-up1·12 hours agoRomans were notoriously averse to making drawings taller.
minus-squareKillerTofu@lemmy.worldlinkfedilinkEnglisharrow-up8·1 day agoFor demonstration purposes only.
minus-squareSendMePhotos@lemmy.worldlinkfedilinkEnglisharrow-up4arrow-down2·1 day agoYeah, but the water pipe goes back up meaning that there is near equal pressure on either side of the U-Siphon, right? Kind of negates the siphon, in a sense? I’m no fluid dynamics expert. Just a casual Joe.
minus-squareCameronDevlinkfedilinkEnglisharrow-up5·22 hours agoIts a bad diagram, the other side needs to be lower :/
Same way a fuel siphon works, as long as the opening is below the inlet, and the rest of the tube is full and sealed, the water will flow.
https://en.m.wikipedia.org/wiki/Siphon
How did the Romans seal that apparatus? Cement? Even that would fail rather quickly
Lead Pipes: http://www.romanaqueducts.info/siphons/siphons.htm
Also some terracotta pipes, but not really clear how its sealed.
It never would have occurred to me that siphons work that way, too!
By why did they even need one here though?
Because it’s simpler to build siphons through large valleys instead of 100 meter high 10 kilometer long aqueducts.
But you have to keep water pressure throughout the length of that tube, how did they do that with their materials?
Valley was too deep for the aqueduct but they didn’t want to make the drawing taller just for that
Romans were notoriously averse to making drawings taller.
For demonstration purposes only.
Yeah, but the water pipe goes back up meaning that there is near equal pressure on either side of the U-Siphon, right? Kind of negates the siphon, in a sense?
I’m no fluid dynamics expert. Just a casual Joe.
Its a bad diagram, the other side needs to be lower :/