Wikiwand - McGraw Hill Education
McGraw-Hill is an American publishing company for educational content, software, and services for pre-K through postgraduate education. It is one of the "big three" educational publishers along with Houghton Mifflin Harcourt and Pearson Education. The comp...
Edison and Westinghouse controlled many books and publishers. Lots of electrical theory has been buried.
tesla did so much more in the 1890's than anyone can do today with modern teachings. There is way more to electrical energy.