this post was submitted on 06 Oct 2025
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HistoryRuins

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What is a ruin? We’re running off of “You know it when you see it” at the moment. Ruins should be non-functioning structures of some age, or their function reduced to tourism and the like.

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Pre-Columbian Aqueduct around Cumbemayo, Peru (media.piefed.social)
submitted 3 weeks ago* (last edited 3 weeks ago) by PugJesus@piefed.social to c/historyruins@piefed.social
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[–] infeeeee@lemmy.zip 5 points 3 weeks ago (1 children)

What may be the reason they dug it with right angles?

[–] PugJesus@piefed.social 5 points 3 weeks ago

Controlling the flow speed of the water, I believe, though that's just from a cursory search.