This encyclopaedia covers all aspects of Science, from definitions of technical terms to characterization of different fields. This volume provides wide-ranging exposure of biology, chemistry, physics, earth sciences, astronomy and all other fields of science. Entries include areas such as astronomy, earth sciences, solar system, genetically modified organisms, plastics, electronics, cell biology, and theory of science, history of science, sociology of science, scientific metering, and economics of science, mathematical and cybernetic methods of analysis information, system analysis, scientific institutions and methods of scientific forecasting. Articles on leading scientists are also covered. From the basic elements of theory to the most cutting-edge technology, all is explained in this volume.

A number of reference works have been published in recent years that include, but are not restricted to, biographical information about scientists. This volume is designed differently and is intended to meet several specific needs. It provides personal and professional information concerning scientists, including some whose accomplishments are undeservedly obscure. We have included scientists from Academics and laypersons, professionals and amateurs, all are figured in this volume.

Present has been complied and edited to art as a useful compendium to help you improve your knowledge in this subject, perform better in competitive and regular examinations and carve your career. Part I of this book includes study material to familiarise the reader with basic key concepts of the subject. Part II includes more than 1000 questions, which have been selected from various competitive and other examinations. Every question included in this book has been extensively tested with school, college and university students. All type of objective questions have been included which may be either factual or may involve a fair amount of reasoning before a firm decision would be made. By means of those questions, one can readily test his grasp on the respective subject.

The Encyclopaedic Dictionary of Physics is an effort to keep pace with continuing rapid developments and expanding vocabularies in various branches of Physics such as Properties of Matter, Heat, Light, Sound, Electronics, Electricity and Magnetism, Modern Physics, Nuclear Physics, Quantum Mechanics, Classical Mechanics, Spectroscopy and Solid- State Physics. This dictionary has been encyclopaedic in its contents and presentation style. Wherever necessary, the terms have been explained with illustrations and mathematical expressions. The dictionary is designed to serve as a ready reference for undergraduate and post-graduate students and for those appearing for competitive examinations, besides the research scholars, teachers and scientists. The entries have been written in a clear and explanatory style to provide both straight forward definitions and valuable background information.

Undoubtedly, the encyclopaedia Dictionary will be of utmost use for one and all.