funny@lemmus.org to Ask Lemmy@lemmy.world · 7 months agoWhy is such a tunnel needed?media.mas.toimagemessage-square61fedilinkarrow-up1303arrow-down120file-text
arrow-up1283arrow-down1imageWhy is such a tunnel needed?media.mas.tofunny@lemmus.org to Ask Lemmy@lemmy.world · 7 months agomessage-square61fedilinkfile-text
I found such a photo on the Internet and became interested in what function such a structure could perform.
My first thought as well.