The fast pace of globalization that has knit the world together over the last several centuries depends crucially on a robust communications network. One of the cornerstones of that system was the Transatlantic Telegraph Cable, a daring, costly endeavor completed in fits and starts over the course of more than 10 years in the mid-1800s.
Telegraphs use dedicated wires to send pulses of electric current, which can be received and decoded to deliver messages. “The first functioning telegraph was set up by Francis Ronalds, a distinguished amateur scientist, in his Hammersmith (England) garden in 1816,” wrote historian Gillian Cookson
This post was originally published on this site