Morse code, the language of the telegraph, is a system of communication that's composed of combinations of short and long tones that represent the letters of the alphabet.

Morse code is nearly 200 years old and can be used to quickly transmit messages locally or around the world, although there are better systems in use today.

Maritime Morse code was formally phased out in 1999, but in California, a group of enthusiasts who call themselves the “radio squirrels” keeps the tradition alive.