SOS is a Morse Code distress signal. Morse Code is a system that uses dots, dashes and spaces to communicate letters and numbers. It was first created during the 1830s by Samuel F.B. Morse but was ...
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Tech Xplore on MSNUkraine war: Why the Russian army is still using morse code more than a century after its ...Even today, many people would be able to identify the characteristic sound of Morse code ... forming the emergency signal SOS ...
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