The Morse alphabet is used to transmit letters and numbers and was developed in 1844 by the North American painter and draughtsman Samuel F.B. Morse. Morse code was of great importance for the transmission of news in shipping, aviation and railways.
A constant signal is switched on and off. There are three symbols: short signal, long signal and pause.
Further informationson the exhibit "Morse telegraph"
The different combinations of the three symbols allow different messages to be transmitted by means of Morse alphabet. Today, Morse characters are only used to a very limited extent in aviation and shipping.