Also in 2015, an arbiter caught Italian amateur Arcangelo Riccicardi using Morse code and a camera to cheat in a competition.

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 can be sent using low power, equipment built from simple materials or even using mirrors or flashlights. Finally, Morse code is a very simple way to do covert communications.

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.

Morse code is independent of pitch or spatial information of any sort—in Morse code timing is everything. There are two fundamental elements of Morse code: dots and dashes.

Surprisingly, there is another area of modern life which has also been affected by the use of Morse Code. And that’s the world of popular music. It’s astonishing how many songs and albums have ...