I know that I need to satisfy the core requirements for a Bachelor's in physics and I have the ability and desire to do it. I live in California.. Here, and I believe almost everywhere, public universities do not allowe enrollment in a second Bachelor's, even online. Private universities are not affordable for me and I don't like them anyway ( maybe a sour grape scenario :) ). So how can I study the required undergraduate courses in Physics without enrolling in a Bachelor;s degree? Any practical advise?