Loved this documentary! but now i am looking for some recomendations for some books i can use to teach myself how reverse design a test motor, meaning if i want plan to build a motor with roughly 1hp (or a little more) usable shaft work useing Peters S shaped iron rotor idea how do i mathmaticaly design the size of the rotor, number of turns in the winding and the AWG of the wire, shape of the coil and the laminations size and shape. i understand circuts enough but literally this documentary is the first time i have seen the internal workings of a DC motor in an understandable fashion. i love to read and i am very eager learn about design principals if i can just find the right reference books and a few friends i can ask some questions.

your help would be much apprieciated!!
Eric