Given the nature of the world today, where it seems a technology, application, or piece of equipment is rendered obsolete 15 minutes after it becomes available, Wired has gone back and looked at some of the best obsolete technologies. What's interesting about the list is that despite many of the items having been superseded by more modern technologies, several of them (like the Sundial or the Slide Rule) could still be useful and others have found new life (the Stock Ticker no longer relies on paper, but can be seen on CNBC, CNN, etc. as a crawl at the bottom of the screen).
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