Samuel Morse devised a way to send messages using short and long taps on a signaller (sometimes called a key). This was connected to another signaller a distance away. At the other end, a person wearing earphones would receive these taps and write them down as dots and dashes. They would then convert them into a message.
It is an electrical switch used by a trained operator to send Morse code messages. When the switch is tapped it connects the electrical circuit and sends a pulse or signal. If it is held down it sends a long signal (a dash). A short tap sends a short signal (a dot). It was a very skilled job as it is easy to make mistakes.
Have a Go!
Can you crack the Code? and learn how to make your own. Why not try making your own code using Lego or noisy household items…
We have several Morse code machines in our Education Loan Box collection (email [email protected] for more info).