http://blogs.smithsonianmag.com/design/2013/10/how-the-telegraph-went-from-semaphore-to-communication-game-changer/
and
http://online.wsj.com/news/articles/SB10001424052702304672404579183940409194498
No luck today at lunchtime. One of those rare days where I got skunked.
72 de Larry W2LJ
QRP - When you care to send the very least!
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