I went on a trip to Oxford with my school, and I asked a lady whether or not you have to go and discover something in a PhD? She said no, and it's more research. But I read up somewhere that you do have to discover something to get a PhD.
I just want to know precisely how a PhD works.
Will some subjects- like Maths or Computer Science- require you to go out and prove something, and are others- like English- just require the student to do extensive research?
Note: by getting a PhD, I don'y just mean anyone getting it, I do mean someone who's actually studying for one.