ТехЭхо

For the discworld alternative, check the clacks [1].[1] <a href="https://wiki.lspace.org/Clacks" rel="nofollow">https://wiki.lspace.org/Clacks</a>

It’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

There are many places called Telegraph Hill that used to be semaphore towers.

If 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.

Ah, so that's the origin of semáforo in Spanish, which the current meaning is "traffic light". And a semaphore on programming, too.

For the discworld alternative, check the clacks [1].[1] <a href="https://wiki.lspace.org/Clacks" rel="nofollow">https://wiki.lspace.org/Clacks</a>

It’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

There are many places called Telegraph Hill that used to be semaphore towers.

If 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.

Ah, so that's the origin of semáforo in Spanish, which the current meaning is "traffic light". And a semaphore on programming, too.

The Rise and Fall of the Visual Telegraph (2017)

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The Rise and Fall of the Visual Telegraph (2017)

5 comments