minus-squareGreens@beehaw.orgtoToday I learned@lemmy.ml•TIL some cities (like NYC) pump nitrogen into their phone lines to keep water out.linkfedilinkarrow-up1·7 months agoNitrogen makes up most of the atmosphere and is a relatively cheap gas to capture and compress. linkfedilink
Nitrogen makes up most of the atmosphere and is a relatively cheap gas to capture and compress.