SPACE. ROCKETS. PHYSICS. I have been more than passionate about these things for as long as I can remember. There isn't a single article, book or video covering those topics that I came across and I didn't read it or watch it.
For this reason, I now hold a Master's in Electromechanical Engineering with a major in Propulsion and Thermodynamics. To post courses online started out as a joke but then I found myself loving what I do. I could sit on a desk, bring out the tablet, turn on the computer and start recording, and I wouldn't even look at how much videos I recorded or how much time I spent.
All I want is to present clear, thorough and simple courses that answers all the questions you've been having, courses that wouldn't expect you to have a background in anything because everything will be explained in detail.