All these comments and no Steinmetz mention. The original papers he wrote applying the transforms to electrical engineering work are so genius and simplifying for the craft, and he's such a nicer person for one of the founders of the field of EE. Also the origin of that old story about $10 for hitting the machine with a hammer $9990 knowing where to hit it, from what I can gather.

Steinmetz is an unsung hero of tech, except to well-educated EE's.

Was he a dwarf or a hunchback? I seem to recall a physical setback.