Whether to join winter/summer programs?? Hello everyone.. I am an undergraduate (2nd year) of physics. I have interest in the subject, though having been not formally introduced to modern topics i wonder if i should join some summer/winter programs which are supposed to be based on some ideas of the modern and existing research. At present when I look at my understanding of mechanics or electromagnetism or thermal (which i am presently doing in my college) I feel as if they are incomplete, i don't really understand what a force is or how to interpret the thermodynamic variable like pressure at the microscopic level (without getting into quantum mechanics). I find my knowledge of physics to be confined to the books i have studied , and i think this is far from what will be needed for the programs out there. And the moment i give up the thought of these programs, i am haunted by the thought that if i don't take part in such programs what will my resume contain, taking away my chances of admission to a good university. Then i wonder if i take up such programs only for the purpose of making my CV impressive i would be fooling myself, because in this way i wouldn't have understood what i am doing in the limited time and would have done all that just for the sake of doing it. So please advice me what should i do? Any help will be appreciated..