Shadow@lemmy.ca to Today I learned@lemmy.ml · 8 months agoTIL some cities (like NYC) pump nitrogen into their phone lines to keep water out.hackaday.comexternal-linkmessage-square11fedilinkarrow-up1144
arrow-up1144external-linkTIL some cities (like NYC) pump nitrogen into their phone lines to keep water out.hackaday.comShadow@lemmy.ca to Today I learned@lemmy.ml · 8 months agomessage-square11fedilink
Hashtag N two.