Hello geeks. I had an epiphany today while repairing my wifes barber clippers. It was about the flow of electricity. Basically DC vs AC.
I began my love of electronics with my first erector set about the age of 5. By age 10 i had collected a small library of books on electronics from my uncles, and father, and grandfater. All of them mechanics.
Ok, cutting the life story in the bud right now! Sorry.
So, one of the night hings i learned in my self taught electronics course was this… the power from a battery (think flashlight battery) flows from negative to positive. I had plenty of documentation for this.
Sometime in the mid 1980’s, we had mass confusion in the Air Force geekdom where i worked. We learned that what we had all learned about electricty was wrong. That the electricty flowed from Positive to Negative. There was much resistance to this, no pun intended. The “pointy heads” (our nickname for the hard core electronics guys. They worked on avionics and ECM. They lived electric theory at work every day) seemed almost panicked. But we got over it, and life went on, the world didnt end, and the universe was still balanced.
So a few years ago, I got a job offer at a copier company as a repair technician. Right up my alley! The tech manager asked me a bunch of questions. Had me take a short quiz to test my knowledge (I had to admit the one question that stumped me was “draw a wiring diagram of a three way light switch, as found in house wirirng. I told him I really hate house wiring, could i draw him a bridge rectifier instead? That made him laugh.)
Then he asked me which way does electricty flow. I must have had a shocked look, because he started to laugh. I gave him a quick answer, that i thought i knew, and then in the Air Force in changed. He got a kick out of that, and we went on. Long discussion about it.
Then he told me something i never heard of “electron holes”. He said the electricity flows from positive to negative, but the electron holes travel from negative to positive.
Well, today i began looking into it. This is an interesting fella, he often makes a lot of sense. If you thought you knew electronics, well, if youve heard the saying about quantum mechanics… “someone that says they understand quantum mechanics, doesn’t understand quantum mechanics.”