Morse Alphabet

Morse Alphabet, a device, the invention of S. F. B. Morse, the American electrician, whereby the letters of the alphabet are expressed as combinations of dots and dashes, of short and long flashes of light, or of short and long whistles or other sounds. Originally introduced for telegraphic work, it is now of even greater importance for signalling purposes, especially in the navy, where it is used, particularly by night, as a means for communicating between ship and ship or between a ship and the shore.