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TIL some cities (like NYC) pump nitrogen into their phone lines to keep water out. (hackaday.com)
submitted 7 months ago by Shadow@lemmy.ca to c/todayilearned@lemmy.ml
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[-] DumbAceDragon@sh.itjust.works 2 points 7 months ago

I would always see those canisters around the city and wondered what they were. TIL.

this post was submitted on 14 Mar 2024
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