ABSTRACT
A discipline can be de ned by two criteria: the subject matter of study and the methodology by which the study is carried out. So, rst let us talk about the subject matter; i.e., what is the de nition of physics? Most de nitions are basically a laundry list, like the one listed in the introduction of this book. Let us consider one that conveys the spirit of physics, although I imagine some might disagree with it. Anyway, here is my de nition:
(By the way, we will be talking about assumptions several times in this book. It is especially important to be aware of them. Many times we take them for granted and do not even realize that we are making any assumptions, and so, of course, do not question whether or not they are true.)
OK, here is my list (maybe you can nd even more):
1. We assume there are Laws to be found. (We will talk more about “Laws” a little later).
