Hello everyone! First of all, this is not a thread begging for research questions; I don't like taking other people's ideas and attaching my own name to them. Anyways, I have this big essay I need to write and I chose the subject of physics (this is the IB EE if anyone was wondering). I am looking at formulating a research question based around the photoelectric effect but I don't know where to start. How do experienced physicists come up with research questions? I mean I've tried forcing out research questions by sitting there staring at my wall for an hour while thinking about the the photoelectric effect. I've also tried reading my textbook and waiting for inspiration but that didn't work either. So my question is: how to experienced researchers in physics come up with research questions? How do Ph.D or masters students working towards a degree in physics come up with a thesis for example? Once again, I'm not looking for anyone to give me a specific research questions, I just want to know techniques that seasoned scientists use to come up with them. Thanks in advance!