Smoke signal

The smoke signal is one of the oldest forms of long-distance communication. It is a form of visual communication used over a long distance. In general smoke signals are used to transmit news, signal danger, or to gather people to a common area.

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Source: Wikipedia · Image: Wikimedia Commons · Public domain

DITDASH

Dit dah — Morse code, signaling, and the basics of getting on the air.

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Every entry, image, and fact is drawn from Wikipedia and Wikimedia Commons, used under public-domain and Creative Commons licenses. No content is AI-generated.