This is a real example of the process of helping a student reach a good research question.Me: What"s your topic?Student: The braking of a car.Me: Be more specific.Student: I"m interested in the distribution of friction between the back and the front when a car brakes.Me: What are you going to change?Student: How about the distribution of weight?Me: Sounds interesting but this is going to be difficult to perform, maybe...