Ran across this guy on YouTube recently. I'm kind of impressed with his simple way of explaining things that many of us here learned a few decades ago = high school level* shop and everyday 'how things work' physics. No esoteric engineering concepts or math, just some good common sense (IMHO) advice and examples.
* or what I consider the minimum for someone that wants to build their own plane.
* or what I consider the minimum for someone that wants to build their own plane.