Technology
Pneumatic tubes launch physical items via air vacuums
HERE’S THE INTERESTING PART
Old offices and banks used to fire physical items through the walls like oversized spitballs. Placing a cylindrical canister into a sealed pipeline exposes it to a powerful vacuum fan on the other end. The differential atmospheric pressure aggressively sucks the capsule rapidly through the twisting plastic arteries of the building until it clatters violently into the receiving bin.
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