G.I.R.L. 2017
Morse code is one of the easiest and most versatile ways of communicating. You can send a message using sound, light, or even written symbols and all without needing any special equipment. A Go-getter like Jerrie Mock would have needed Morse code in case her radio systems weren’t working, and an adventurous journalist like Nellie Bly might have used Morse code to communicate while undercover.
International Morse Code A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z
• • • • •
The length of a dot is one unit. A dash is three units. The space between parts of the same letter is one unit. The space between letters is three units. The space between words is seven units.
1 2 3 4 5 6 7 8 9 0
Can you crack the message written in Morse code below? It’s a quote by Katherine Johnson!
“
Answer on page 18
;
”
-- Katherine Johnson
“
; ”
10
Now try teaching a friend the secrets of Morse code – can you write secret messages to each other?