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Episode 5: The telegraph is not what you think
Manage episode 373442694 series 3499864
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We promise you; you don’t know what the telegraph is. You think you know, but did you know the first telegraphs had no wires? Did you know they used 30-foot tall towers with people standing on top of them? Did you know that electrical telegraphs were originally discovered thanks to a frog leg?
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