On This Day – Jan 7

 It was on this day in 1904 that the wireless of radio distress signal “CQD” was established as the international distress signal. It came from the letters CQ that were used as a general call, and D for distress. It was replaced two years later by the famous SOS call.

Quote: When you are confronted with a hard problem that you cannot solve, there’s another problem that you can solve, so go and fix that first. George Polya, mathematician