The standard textbook on electricity and magnetism for junior and senior undergraduate students in physics and electrical engineering. It includes new problems (including several computational problems in Mathematica), worked examples, figures, and updated references to recent research.

Are you curious to know what all languages have in common and how they differ? Do you want to find out how language can be used to trace different peoples and their past? Now in its fourth edition, this fascinating book guides beginners through the rich diversity of the world's languages. It presupposes no background in linguistics, and introduces key concepts with the help of problem sets, end-of-chapter exercises and an extensive bibliography. It is illustrated with detailed maps and charts...