Librarians offer in-depth research help.
During library open hours, ask at the main desk for help finding what you need. The desk is usually staffed by student workers - if you have in-depth research questions, just let them know that you want to meet with a librarian.
Click on the Ask a Question tab on the right side of a library web page. It will bring you either to live chat, or to a place where you can leave a message.
830-372-8100 (main desk)
Library directory (list of individual library staff and faculty)
Searching for information on the Internet has some benefits: it is free, convenient, easy to use and huge. However, there are limitations to doing research on the Internet as well: it is huge, impermanent, there is a lack of accountability, there is a lot of misinformation and it misses the scholarly information behind paywalls.
Keep in mind that information on the Internet will require you to closely evaluate the source.
Here are some recommended websites for physics:
Google Scholar is a freely-accessible web search engine that provides a simple way to search for scholarly literature. However, we do not know the full scope of what is covered because the indexing is not published.
Here is a LibGuide on Google Scholar.