A larger model of Tesla's boat with the deck removed

Tesla radio-controlled boat first demonstrated in 1898

RADIO-CONTROLLED BOAT was unveiled by Tesla in 1898. The next year he demonstrated to the Chicago Commercial Club that he could run a boat (view from above) without touching it, making it turn, accelerate and flash its lights whenever he sent signals to it. Some experts regard the boat's circuitry as a progenitor of the basic AND logic used in modern computers.