This is the most popular dictionary of physics available. It contains over 3 800 entries covering all commonly encountered physics terms & concepts as well as terms from the related fields of astronomy astrophysics & physical chemistry. With 200 new entries & expanded coverage in areas including applied physics statistical distributions polymers & nanoscience A Dictionary of Physics is more comprehensive than ever before. The dictionary is generously illustrated with over 120 diagrams graphs & tables & it also contains biographies of important scientists. Feature entries provide in-depth analysis of key topics such as crystal defects magnetic resonance imaging & the solar system. Three feature entries on low-temperature physics nanophysics & quantum entanglement are brand new to this edition. Also new to this edition are entry-level web links & a web linked appendix. These recommended web links are accessible & kept up to date via the Dictionary of Physics companion web page & provide useful & relevant extra information. Appendices include SI units the solar system & the electromagnetic spectrum plus a list of Nobel Prize winners & a chronology of key dates in physics. This fully revised & updated A-Z is an ideal introduction to the subject for anyone with an interest in physics & it remains an indispensable reference work for students of physics & physics-related subjects (either at school or at university) & professionals.