Semaphore (communication)
The semaphore line was a signalling system invented by the Chappe brothers in France. It is different from the naval semaphore system that uses hand-held flags, which was invented later.
External Links
- Chappe's semaphore (an illustrated history of optical telegraphy)
- Semaphore Flag Signalling System (shows stick figure waving flags)
- International Maritime Signal Flags (sometimes confused with semaphore flags; shows alphabetic/numeric maritime flags)
- International Maritime Signal Flags (shows the meaning of each flag, and two-letter meanings)
- U. S. Navy Flags (shows the meaning of each flag)
- Maritime Signal Flags (a brief illustrated history of maritime flags)
- World War I and II Royal Navy Flags (historical; shows the meaning of each flag)
- U. S. Storm Signal Flags (pictures and description)
- Automobile Racing Flags (picture and meaning of each flag)
- Skin Diving Flags (pictures and laws of use)
See also optical telegraph.
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