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What does 'SOS' mean? The term's maritime origins and how it shows up in our lives today.See the difference for yourself: SOS was first transmitted in the U.S. in 1909 from the Arapahoe vessel and was later used alongside CQD when the Titanic was sinking. The U.S. officially adopted ...
Although the U.S. lagged in adopting the new signal, the first SOS was transmitted from the American vessel "Arapahoe" in 1909, after a propeller shaft snapped. But CQD remained popular-primarily ...
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