US President Benjamin Harrison…

US President Benjamin Harrison had electric lights installed in the White House, but would sleep with the lights on because he was too afraid to touch the switches. To be fair, old school light switches aren’t like the ones we have on the walls today. They were ungrounded toggles, either spinners or levers, which physically broke the connection with a very distinct popping sound. A mild shock wasn’t unheard of.

In 1746, Jean-Antoine Nollet conducted an experiment in which he gathered about two hundred monks…

In 1746, Jean-Antoine Nollet conducted an experiment in which he gathered about two hundred monks into a circle about a mile (1.6 km) in circumference, with pieces of iron wire connecting them. He then discharged a battery of Leyden jars through the human chain and observed that each man reacted at substantially the same time to the electric shock, showing that the speed of electricity’s propagation was very high.