Tesla was a geek of the highest order and remains a hero for high-voltage enthusiasts. His party trick was to send massive amounts of electricity through the air using a Tesla coil. His experiments remain the most visually interesting in the field. In 1901 Tesla constructed the Wardenclyffe Tower, a massive aerial in New York that he speculated could be used as a "death ray". He dedicated his life to outrageous experiments in electricity and is credited with the invention of AC power.