this post was submitted on 02 Oct 2024
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Illustrations of history
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This magazine is for sharing artwork of historical events, places, personages, etc. Scale models and the like also welcome!
Generally speaking, actual photos of a historical item should go to !historyartifacts@lemmy.world
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Photos of the past should go to !HistoryPorn@lemmy.world
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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?
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.
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.
It needs to be water pressure because atmospheric pressure can’t lift water more than about 10 metres.