Elektro the Moto-Man Had the Biggest Brain at the 1939 World's Fair

"Ladies and gentlemen, I'll be very glad to tell my story. I am a smart fellow as I have a very fine brain of 48 electrical relays." This is how Elektro the robot introduced itself to crowds at the 1939 New York World's Fair. Standing 2.1 meters tall and weighing 118 kilograms, Elektro performed 26 different tricks, including walking, talking, counting, and singing. It had a vocabulary of approximately 700 words, although its responses were all prerecorded and played back from 33⅓-rpm records.