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It’s worth seeing also the transatlantic cable map from 1800s: https://en.m.wikipedia.org/wiki/Electrical_telegraphy_in_the_United_Kingdom https://en.m.wikiped
by aborsy 6y ago
It’s worth seeing also the transatlantic cable map from 1800s:
https://en.m.wikipedia.org/wiki/Electrical_telegraphy_in_the_United_Kingdom https://en.m.wikipedia.org/wiki/Electrical_telegraphy_in_the...
https://en.m.wikipedia.org/wiki/Transatlantic_telegraph_cable https://en.m.wikipedia.org/wiki/Transatlantic_telegraph_cabl...
Various maps can be seen in Google maps. Nowadays the cables are fiber-optic rather than electric copper cables.
- sokoloff 6y agoThey’re a composite cable, with fiber for the data portion and copper for the power needed to drive the fiber optic repeaters. I was able to tour a fiber laying/maintenance ship back in the 1990s. Had it explained that they lay the cable powered and under end-to-end test (shore to ship). This makes the spool of cable into a giant electromagnet, meaning there were signs all over portions of the ship banning steel tools, watches, etc.
- aborsy 6y agoYes. They are probably amplifiers not repeaters. The latter is now obsolete in long-haul transmission.