During the 1859 solar storm, telegraph operators disconnected their batteries entirely — yet messages kept flowing on the storm's own current as sparks showered from the machines and the paper caught fire - Space Daily
On September 2, 1859, telegraph operators George Wood in Boston and Frederick Royce in Portland unplugged their batteries during the Carrington Event and kept sending messages on the geomagnetic current induced by the storm itself — while elsewhere on the net…
