The Prague Pneumatic Post system (early mechanical networking)

Oh 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: <a href="http://news.ycombinator.com/item?id=757843" rel="nofollow">http://news.ycombinator.com/item?id=757843</a><p>Absent that context, it's just taking up page space. Please reconsider.