If you are a ham radio operator of a certain age, you probably remember ads for “The Instructograph,” a mechanical device for learning Morse code. [Our Own Devices] has an ancient specimen of the ...
Many think "SOS" stands for "save our souls" or "save our ship," but it actually doesn't stand for anything. SOS is a Morse Code distress signal. Morse Code is a system that uses dots, dashes and ...
“Calling all. This is our last cry before our eternal silence.” With that, in January 1997, the French coast guard transmitted its final message in Morse code. Ships in distress had radioed out dits ...
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