Illustration of a two-flag semaphore signals alphabet
Illustration of a two-flag semaphore signals alphabet
Aug 2, 2017
istockphoto.com
Before radio, visual line of sight signalling with signal lamps, flags, and these physical semaphore devices were used. The concept of signaling for long distance communication is ancient and used extensively during earlier conflicts like the Napoleonic era. A version of semaphore devices survived in modern time in the form of railway signals. #WW1 #WWI #ww1history #logistics #capcut | This Day In WWI
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*MUST WATCH* Did you know Panamanian golden frogs actually wave to each other as a form of communication? Technically known as a semaphore motion, you can see here an example. Typically, this is used in courtship communication but it can also be used as an aggressive warning. So cool! 👋🤯💛🐸 🎥: Zoo Keeper Catina Wright Thank you to our Presenting Conservation Days Sponsor Five Star Bank! | Seneca Park Zoo
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