Condensation. Stone wall is cold in the morning, humid morning air passes through it, water condenses on the large, cold surface, and drips down.
Comment on Robotic excavator builds a giant stone wall with no human assistance
Starglasses@lemmy.blahaj.zone 7 months agoI don’t understand what that means. How does a wall take water out of the air and why is that wanted?
Treczoks@lemmy.world 7 months ago
kurcatovium@lemm.ee 7 months ago
I presume stones get cold during night, when temperature rise they remain colder than air so water in the air condensate on them. Why is this wanted? Well, to get drinkable water in dry areas?
ikidd@lemmy.world 7 months ago
Probably evaporative cooling effects.