In September of 1898, Tesla demonstrated the remote controlled boat in the image above at Madison Square Garden during the First Annual Electrical Exhibition. It was controlled by means of tuned circuit technology which enabled the machine to be steered in different directions, stop, start, and flash lights, all by means of a controller held by Tesla.
Tesla referred to the boat as an “automaton” and believed that the technology would one day be used to fight wars.
You can download his patent here
