Perseverance pays off: The Transatlantic Telegraph Cable

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

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