This book deals with the interactions between scientists and the struggle not so much to come up with the new concept but to define it concisely. Many advances that are attributed to a particular person are due mainly to that person being able to concisely define (probably by an equation) what was the current thinking at the time. The book is pretty much a biography about the scientists not much about the equations.
I think Lyndal Hughes's review is pretty much spot on. It is certainly not what I was expecting either. It gives no explanations of the equations at all. Basically it just waffles. I got a feeling that the author may have felt it was too hard for a scientist to explain things in a layman's terms (i.e. you needed to be a physicist to understand) so he didn't bother. For this reason I give it one star not five because I wasn't after a soap story but an explanation of the equations and the maths and physics behind them.