This classic book is essential reading for all those interested in the development of modern physics.

Sir Arthur Eddington's account of the general theory of relativity, 'without, ' as he says in his preface, 'introducing anything very technical in the way of mathematics, physics or philosophy', was first published in the exciting days of 1920 soon after the first objective tests of the theory had demonstrated its validity. The book was at once received with acclamation by reviewers and remains today one of the simplest and most straightforward accounts in print. The reviewer in the...

Bondi is best known to scientific readers on these shores as a cosmologist, but to read these rather informal pages is to discover that he has (and very proudly) contributed over the years to a remarkable variety of fields...as a theoretical physicist, but

Professor Herman Bondi, one of the proponents of the Steady State Theory, presented this volume as an account that would establish cosmology as a distinct branch of physics. First published in 1952, just a few years after the term 'the Big Bang' was coined, it represents an important stage in the development of cosmology. With detailed discussions of different theories including Newtonian cosmology, relativistic cosmology and kinematic relativity, it gives a remarkable insight into scientific thought at this crucial time. It will be most useful to anyone with an interest in the history of...