This book is intended for undergraduates taking an introductory course on special relativity which is rather more conceptually and mathematically than experimentally orientated. A suitably prepared reader could use it for self-study. It assumes no prior knowledge of relativity. Thus it elaborates th[...]

Relativistic cosmology has in recent years become one of the most active and exciting branches of research, often considered to be today where particle physics was forty years ago, with major discoveries just waiting to happen. Consequently the part most affected by this second edition is the last p[...]