"Telegraph systems all over Europe and North America failed, in some cases giving telegraph operators electric shocks.[13] Telegraph pylons threw sparks.[14] Some telegraph operators could continue to send and receive messages despite having disconnected their power supplies" - wiki article
2 comments
[ 3.7 ms ] story [ 10.5 ms ] thread"Telegraph systems all over Europe and North America failed, in some cases giving telegraph operators electric shocks.[13] Telegraph pylons threw sparks.[14] Some telegraph operators could continue to send and receive messages despite having disconnected their power supplies" - wiki article