Actually, this was my experience, as well. But I did not truly learn the subject until I used a more standard text (not Giancoli, but similar). Feynman gives you ideas and intuition, not mastery.
Actually, this was my experience, as well. But I did not truly learn the subject until I used a more standard text (not Giancoli, but similar). Feynman gives you ideas and intuition, not mastery.