You can read more about the fascinating history here: https://about.usps.com/who-we-are/postal-history/pneumatic-tubes.pdf
Credit: https://hachyderm.io/@miah
this post was submitted on 27 Jun 2023
63 points (98.5% liked)
Solarpunk technology
2347 readers
36 users here now
Technology for a Solar-Punk future.
Airships and hydroponic farms...
founded 2 years ago
MODERATORS
there doesn't seem to be anything here