Elon Musk is not the first inventor to put his hopes into vacuums. Respect to the Hyperloop, but pneumatic tubes have a centuries-long history -- in both human infrastructure and in the minds of ...
Imagine, if you will, a secret community dwelling beneath the streets of New York City, its inhabitants never allowed to travel to the surface or to interact in any way with the dreaded “Topsiders.” ...
Powered by compressed air, the system transported millions of letters between 1897 and 1953 Vanessa Armstrong | History Correspondent A pneumatic mail tube at the main Post Office Department branch in ...
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