Hello! Is there a good math or physics topic for me to study and learn this summer? I have already taken freshman physics 1 and 2 (basic mechanics and electromagnetism) Calc 1&2, and Diff Eq. In the fall, Ill be taking Calc 3, Intermediate Physics, and Advanced Mechanics, so is there something interesting I could study that would not overlap with those classes? It doesn't need to be purely academic in nature; it could be a lecture series or an interesting book on math and/or physics.Thank you!