As mentioned in this week’s episode, to get a good visual sense of how Tesla would use the ‘skin effect’ of his oscillating transformer to wow Gilded Age audiences, you need look no further than David Bowie’s portrayal of Nikola Tesla from the Christopher Nolan movie, The Prestige (if you haven’t seen it–seriously, do so right away):

And while there are apparently no photographs of these moments, Tesla would also create a glowing halo of energy around himself at his demonstrations, as illustrated here:

(Source: New York World, 09 Dec 1906)