Known as an eccentric thinker, Wolfgang von Kempelen is best remembered for his automatic chess-playing machine The Turk and his speaking machine. The Turk eventually turned out to be a hoax, designed by Kempelen to impress Maria Theresa, the Austrian Empress, and had human chess players operating it.
In his 20s, Hungarian inventor Otto Blathy co-invented the transformer and various other engines and motors that are used in AC technology. In spite of being born into an affluent merchant family, he pursued science. Apart from his interest in electrical engineering, he was also known for authoring various chess problems.