This Scratch program uses Morse Code to send messages letter-by-letter or in a single long message. Morse code is a substitution cipher designed in the 1830s and 1840s by Samuel F. B. Morse. The idea was sparked by the electrical telegraph (Greek: têle, "at a distance" and gráphein, "to write"). The code assigned letters and numbers a set of dots (short marks) and dashes (long marks). Watch the letters being formed. Often-used letters (such as “E”) received a simple code. Some rarely used letters (such as “Q”) got a longer and more complex code. In the program-- You may send a message by clicking each letter or number on the bottom half of the stage. You may choose to use the keyboard to type each letter or number. Use the space bar or "space" sprite to signal pauses in messages. Use the down arrow key to skip the introduction. Click the poster or use the up arrow key to draft a longer message to be enciphered and sent all at once. Type your entire message to hear and see it displayed in Morse Code (68 characters max, no punctuation).
Introductory music "Run (2014)" by Hal Hartley, Possible Films Music. Morse Code Graphics by FattRedd. http://imgur.com/gallery/jQjXbis WAVES (Women Accepted for Volunteer Emergency Service) Poster from http://cw.hfradio.org/. During World War II, over 80,000 officer and enlisted women served in the WAVES. Learn more about Morse Code at-- http://www.history.com/topics/inventions/telegraph.
