Morse code

Designed by Samuel Morse and Alfred Vail in the 1800’s and using long and short pulses of tones or light (dots and dashes) which represented letters. Combinations of these pulses represented letters and numbers. All 26 letters and numbers 0 to 9 are represented by these dots and dashes and telegraph operators (or people who know Morse code) would be able to send information great distances. The  most famous Morse code message is formed by three short pulses, three long pulses followed by three short pulses (dot, dot, dot, dash, dash, dash, dot ,dot ,dot) otherwise known as “SOS”.

Sending messages using a Morse code conversion table and a flash light can prove to be an interesting and fun activity for students.