An Introduction to Modern Cosmology

Rating:
Summary: Its cool
Review: Dr Liddle was my academic tutor at Imperial College, London.

I have every trust that his books is as clear as his tutorials.

Rating:
Summary: An excellent introduction
Review: I came across this book because it was required reading for my cosmology course. The book gives a Newtonian (it only briefly mentions the much more complicated General Relativity equations) overview of the current theories about the universe: its mass, its age, its shape and its ultimate destiny. The text is very readable, equations are explained properly and the diagrams are useful. The reader is left with a good impression of why the currently proposed cosmological models are sensible.

The book puts the case for the hot big bang model, which is by far the most popular cosmological model at this time. There is a chapter on the successes of this model: explanation of the cosmic background radiation, universal expansion, and the relative abundance of elements in the early universe. There follows a chapter on the major problems of this model: how come the background radiation looks the same (to within one part in a hundred thousand) everywhere, even when light hasn't had time to travel between all these regions? How did the universe become structured (into things such as stars) when physics predicts that matter should be homogeneously spread? And why does the universe (seemingly) possess the exact right density (to almost infinitessimal precision) to stay flat, as we see it today? Inflation theory offers some help, but at the same time asks a bigger question: which of the many inflation theories (if any) is right? Liddle doesn't go into much detail on this point, but you get a good introduction into what inflation is and why such an odd theory would be proposed.

I'm making it sound as if the big bang model has more problems than it solves, which I don't think it does (heck, it's the best theory we've got). But the problems are more interesting!

On which subject, there are problems (solvable ones!) at the end of each chapter, with brief solutions at the end of the book.

Rating:
Summary: clear as crystal
Review: This book is the most clearly written book I have ever read. Liddle has a knack for making difficult concepts easy to comprehend through his use of analogies and vividly accurate descriptions. The cosmological ideas are explained at an intuitive level and have been imprinted on my mind forever. This book is a great introduction for the less mathematically minded though also a great source of information for others. This book book covers a great amount of cosmology the big bang, nucloesynthesis, inflation, cosmological models etc and is set out in a very logical order. I would thoroughly recommend this as an introduction although for those interested in more mathematical rigour other text books may be necessary.

Well done Dr. Liddle ! A great achievement .............

Rating:
Summary: A concise and accessible overview.
Review: This is a highly readable introduction to Cosmology. The author states clearly that the approach is grounded in physics rather than mathematics and indeed, any reader with a basic grasp of single-variable calculus would cope with the derivations that are presented. Its ready accessibility would make it an enjoyable introduction for those working on their own wanting more than a 'popular 'account of Cosmology.I have adapted and used some of the material and problems for my year 13 physics class.

The main body of the book is self-contained and requires no further material for the interested reader to get to grips with the rudiments of the standard cosmological models. More complex results are stated without derivation and some are used as the basis for the exercises. The 'Advanced' topics require a little more of the reader and are presented as brief summaries rather than being rigorous. For example ,the chapter on General Relativistic Cosmology is 'for those readers who have experienced some general relativity'. As a teacher of physics,I found this book to be a very useful addition to my library.

Rating:
Summary: Best elementary Book on Cosmology.
Review: This is the clearest book on Cosmology available. It is also the most up-to-date. Some math is used, so it is not a book for absolutely everyone. I would say it is for beginning undergraduates, but more advanced readers will get more from the "Advanced Topic" sections. Many problems are included. The advanced readers will have to solve them all, to really get all the book has to offer.
The price per page is high, compared to the Cambridge and Princeton paperbacks.