funny to Ask Lemmy • 1 year agoWhy is such a tunnel needed?media.mas.toimagemessage-square128fedilinkarrow-up1766arrow-down146file-text
arrow-up1720arrow-down1imageWhy is such a tunnel needed?media.mas.tofunny to Ask Lemmy • 1 year agomessage-square128fedilinkfile-text
I found such a photo on the Internet and became interested in what function such a structure could perform.
I suppose it would depend on what is passing over.