Just started the "instrument rating" section in the following book: Microsoft Flight Simulator X For Pilots Real World Training

Excellent book that should end up saving me lots of actual flying time in preparation for the certification test.

As for physics, I'm re-taking the first calc-based physics course (online) at UNC Charlotte this fall. Just enjoying studying the basics again. I'll probably take 1-2 classes per semester until I can get a degree in it. May go for masters, not sure yet.