“Physics is the branch of science which is concerned with the nature and properties of non-living matter and energy that are not dealt with by chemistry or biology, and the fundamental laws of the material universe. As such, it is a huge and diverse area of study.
In order to make sense of it, scientists have focused their attention on one or two smaller areas of the discipline. This allows them to become experts in that narrow field, without getting bogged down in the sheer volume of knowledge that exists regarding the natural world.”
