Eight hundred mirrors in the hands of as many volunteers winked SOS, the famous maritime Morse Code distress signal on Nov. 9 ...

The term SOS is one of the most well-known distress signals used around the world. You might have seen it in movies, on ships, or even in emergency messages, but many people are not aware of what SOS ...

It may be the ultimate SOS--Morse Code is in distress. The language of dots and dashes has been the lingua franca of amateur radio, a vibrant community of technology buffs and hobbyists who have ...

Technically “SOS,” doesn’t officially stand for any of these phrases. It’s the international abbreviation for distress—not to be confused with an acronym (see acronym vs. abbreviation for the ...

The distress signal CQD originated from the signal CQ, expressing "seeking you," or "all stations." The signal CQ was commonly used among wireless operators -- and land-based telegraphers before them ...