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submitted 2 years ago by Facelikeapotato@lemmy.ml to c/cat@lemmy.world

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[-] Scrof@sopuli.xyz 21 points 2 years ago* (last edited 2 years ago)

Maybe they're deep because of water erosion from rains over a thousand years, those bricks look pretty polished.

[-] Zaphod@discuss.tchncs.de 11 points 2 years ago

I don't think the bricks are that old. Maybe a few hundred years or so

[-] CitizenKong@lemmy.world 8 points 2 years ago

Also, wouldn't water erosion make them less deep not more, due to generally smoothing the stone?

[-] HonoraryMancunian@lemmy.world 2 points 2 years ago

Maybe water pools in them long after it dries out on the surrounding brick, but whether still water still erodes stone I don't know.

this post was submitted on 22 Sep 2023

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