Comment on How a subsea cable is repaired (2021)Comments−pingou4mo"In 1858, when the first submarine cable was installed, sending a message across the Atlantic took nearly 18 hours."If anyone is curious as to why it took so long: https://en.wikipedia.org/wiki/Transatlantic_telegraph_cableTLDR: "smearing" of the signal (capacitance), no underwater amplifiers, very faint signal at the end.
Comments
"In 1858, when the first submarine cable was installed, sending a message across the Atlantic took nearly 18 hours."
If anyone is curious as to why it took so long: https://en.wikipedia.org/wiki/Transatlantic_telegraph_cable
TLDR: "smearing" of the signal (capacitance), no underwater amplifiers, very faint signal at the end.