The podcast 99% Invisible covered these tubes as well, and included a bit of their history. Interesting listen if you want to learn a bit more. http://99perce

The podcast 99% Invisible covered these tubes as well, and included a bit of their history. Interesting listen if you want to learn a bit more. http://99percentinvisible.org/episode/episode-61-a-series-of-tubes/ http://99percentinvisible.org/episode/episode-61-a-series-of...