It was Steinmetz. > A genius in both mathematics and electronics, he did work that earned him the nicknames "Forger of Thunderbolts"[4] and "The Wizard of Sche

It was Steinmetz. > A genius in both mathematics and electronics, he did work that earned him the nicknames "Forger of Thunderbolts"[4] and "The Wizard of Schenectady".[5] Steinmetz's equation,[b][6] Steinmetz solids, Steinmetz curves, and Steinmetz equivalent circuit[7] are all named after him, as are numerous honors and scholarships, including the IEEE Charles Proteus Steinmetz Award, one of the highest technical recognitions given by the Institute of Electrical and Electronics Engineers professional society. https://en.wikipedia.org/wiki/Charles_Proteus_Steinmetz https://en.wikipedia.org/wiki/Charles_Proteus_Steinmetz