Semaphore is similar to Morse code in that each letter of a message is translated into another form to allow it to be more easily communicated. While Morse code is used to send messages electronically over a telegraph line, semaphore is used to visually communicate information over long distances.
To use semaphore, an operator holds a flag or lighted wand in each hand. The operator extends their arms to the correct position and pauses for each letter of the message.
Awesome! (sorry I don't know how to write in flags - especially in these comment boxes!)
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