Maybe some day I can be blessed with the opportunity to study some of the things that either come naturally to you, or things you have learnt during your years around here. I, personally, never have an opportunity, nor the position, in which to start "knowledge building" on these things.. I do not own a shop, nor a lift, or know anyone who does.. I know I COULD technically pick up a book and learn, I am not debating that.. I am stating this:
I have my journeyman's license in Advanced Electronics, and Electricity.. (Basic electronics, Transistor theory, advanced digital circuits, op-amp configuration, High Freq Communication circuits(including Upper Side Band, Lower Side Band, and TTY) Radar theory, Klystron repair, etc...)
I am not in any way saying that you COULDN'T learn it, by picking up a book... that is not true.. you could.. however why would you be PROMPTED to, if you have no situation in that field? (BTW: books are nice, but OJT(on the job training) is always better, more concise and easier..)
Being that I have never been placed in a position to learn that, nor have I had the tools that would FACILITATE that learning, I have never learned.. not because I don't want to..

whatever.. you won't hear me calling you names, nor trying to belittle you because you don't understand anything I know... You are right.. I can't belive what some people won't do.. such as leave other peoples lesser skills alone..

Ray