First, hi to all of you. I want to become a lecturer in a university in the States, the UK or England, but I have some unclear things for reaching this. So, to be a lecturer do I need a Phd, and do I have do be a professor to teach as a lecturer. So, how can I become a professor? How much time in general I have to study physics (and theoretical physics, because that's my field of interest) alter I graduate high school to become a lecturer? Another question is how much the average professor make a year and is it low or high for the middle class of people. Thank you a lot!!!