You asked: "Where does your view come from?"

My views comes from my self, which is informed through experiences, observing, reading/researching, and constantly acting on what makes the most sense to I.

You asked: "How do you know what you are saying?"

I know what I am saying because I have experienced, researched and tested what I am saying.

I cannot remember every book I have read on this and other subjects. I am not sure if the one you are speaking about is somewhere around here. However, I am adding to the thread from MY experiences and if others feel to explore the many and varied uses of electromagnetic energy they can do that. There are already many applications out there.

I am of the view that some, including you, did not understand the scope of electromagnetic energy, so I provided a link with basic information. It is quite possible that people could have incorporated the symbol into other applications. That does not mean how the symbol was used was the initial purpose. When something is done right one can always apply it in many other ways later on.