I am curious as to how you find all the various research that has been done on a particular topic? Though I am fairly new to the study of physics, I have been told that prior to becoming involved in a particular research project, you want to look into who else has researched that particular topic, how they did it, what conditions, etc. I have also been told that it is very important to look into ALL of the research so that you are not just duplicating someone else's findings. However, I am at a loss as to how you ensure you have looked at all the research? Is there somewhere in particular that is useful for gathering this information? How do you ensure that there wasn't some research that you missed?