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[-] ieatpillowtags@lemm.ee 14 points 1 day ago

If you’ve ever used a siphon to drain a fish tank, it’s a similar concept. I believe the entrance is a bit higher than the exit, so I guess gravity and water pressure?

[-] Donjuanme@lemmy.world 4 points 1 day ago

Not disagreeing with you there,, but if you've siphoned something you've probably done it with a polymer, how the heck were the Romans doing it? You can't get intestines sealed together tightly enough back in those days.

[-] PugJesus@lemmy.world 9 points 1 day ago* (last edited 1 day ago)

The Romans would often use lead or clay pipes with either dirt or concrete packed around them to make a solid seal that would resist the water pressure and not burst the pipe like a ripe fruit.

[-] chonglibloodsport@lemmy.world 3 points 1 day ago

It needs to be water pressure because atmospheric pressure can’t lift water more than about 10 metres.

this post was submitted on 02 Oct 2024
297 points (99.3% liked)

Illustrations of history

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