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The Rise and Fall of the Visual Telegraph (2017)
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- Rygian 2y agoFor the discworld alternative, check the clacks [1]. [1] https://wiki.lspace.org/Clacks https://wiki.lspace.org/Clacks
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- ttoinou 2y agoIt’s also fascinating this didn’t existed 300 years sooner (with more towers because of poorer telescopes). Communication of information across a kingdom is so important
- anthk 2y agoAh, so that's the origin of semáforo in Spanish, which the current meaning is "traffic light". And a semaphore on programming, too.
- Rygian 2y agoThe word "semáforo" literally means "carrier of meaning" from the Greek σῆμα (sêma) meaning 'signal' and ‒́foro meaning 'carrier'. The visual telegraph is just one such instance of a "carrier of meaning".
- anthk 2y agoAh, well, like semantics... right. I didn't know about 'foro/phoro'. >meaning Could it mean 'symbol' too?
- trhway 2y agoIf i remember correctly the laser optical transmission tech started as a "laser visual telegraph" between 2 PARC buildings rooftops in the Stanford Research Park here.
- ahazred8ta 2y agoThere are many places called Telegraph Hill that used to be semaphore towers.
- dredmorbius 2y agoThat would include the one in San Francisco, with which some readers may be familiar.