The Prague Pneumatic Post system (early mechanical networking)
en.wikipedia.orgOh so that's what that tube thing was in the Simpsons. And all this time I thought it was fake... ha ha ha. me so stupid.
This would be more appropriately included in this thread: http://news.ycombinator.com/item?id=757843
Absent that context, it's just taking up page space. Please reconsider.
There's a long practice here for posting, on their own, submissions that are related to the discussion in another submission. I like this practice, because it gives the feeling of a meta-discussion across all of HN.