this post was submitted on 14 Mar 2024
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Today I learned

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TIL some cities (like NYC) pump nitrogen into their phone lines to keep water out. (hackaday.com)
submitted 6 months ago by Shadow@lemmy.ca to c/todayilearned@lemmy.ml
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[–] Greens@beehaw.org 1 points 6 months ago

Nitrogen makes up most of the atmosphere and is a relatively cheap gas to capture and compress.