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Pneumatic tubes were used to deliver mail!(slrpnk.net)

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will stedden@slrpnk.net
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technology@slrpnk.net
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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

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Sneakz@feddit.de
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In the medicine field this technology isn’t uncommon because you can send samples quickly to the hospital laboratory.

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Solarpunk technology

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Technology for a Solar-Punk future.

Airships and hydroponic farms…

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