The radio frequency AC electric currents produced by a Tesla coil did not behave like the DC or low frequency AC current scientists of the time were familiar with; they were able to pass through insulators and through the human body without causing an electric shock.
The radio frequency AC electric currents produced by a Tesla coil did not behave like the DC or low frequency AC current scientists of the time were familiar with. They were able to to light Geissler tube lights at a distance, to pass through insulators, and through the human body without causing an electric shock.