First off, this book is a huge collection of scientific information on a lot of subjects which don't get detailed explanations in the news. If you want extremely detailed explanations, here they are.



One problem with the book is that it is not for everyone to read. The product description makes it sound like something for almost anyone, but the content is all technical with very little generalized overview. The chapter(s) on Hydrogen are so lengthy, and Rosa goes so far in each chapter to assign us calculation homework. The sheer mass of detailed technical data may distract a layperson from the general fact that Hydrogen is only useful as a means of energy storage, unlike wind or solar power which actually let us capture unused energy as a replacement for petroleum.



Within one of those chapters, Rosa makes a rather gratuitous comment about the future price of fuel cells, based entirely on a very generalized argument about production. But Rosa doesn't have any special knowledge of fuel cell or iron engine production (or at least he does not reveal any such fact here), so this is out of place in what otherwise appears to be a highly academic book.



In addition to the inconsistent point of view (mass science vs. expert vs. opinion), it is unclear why anyone would want such formula-level information about so many subjects, but would not care that it lacks any skilled educational technique to help non-experts understand things.



I could hardly recommend it to anyone. Even as a reference book, you are better off looking things up online for this sort of information than using printed text which ages.