TIL that in 1859 a 2 hour telegraph conversation between Portland and Boston was able to be had without the use of any battery power. This was due to an aurora borealis generating enough electric current in the telegraph wires.


TIL that in 1859 a 2 hour telegraph conversation between Portland and Boston was able to be had without the use of any battery power. This was due to an aurora borealis generating enough electric current in the telegraph wires. https://en.wikipedia.org/wiki/Aurora#Historically-significant_events bermuda__ October 31, 2021 at 02:13AM

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