General Physics

The study of physics is important because so much of life to-day consists of applying physical principles to our needs and pleasures. The electrical and hot-wat arrangements in our houses; cycles, motor cars, trams, trains, and aeroplanes; cameras and the cinema; gramaphones and radio sets; and the machines which do so much of the work formerly done by hand, all require a knowledge of physics for their understanding. A complete understanding of many of these things requires a much deeper knowledge than can be obtained from a school course or from this book, but a knowledge of what is included here should enable you to recognise the physical principles underlying much that you see around you and will form a basis for further study if you wish to pursue it. A number of applications of physics are mentioned in the following chapters, but, whenever you have learned one of the principles discussed, you should try to find other instances in which it is applied. Thus you will find that the laws, formulae, and caculations of physics are not merely things to remember for examinations, but knowledge which will greatly increase your interest in matters of everyday life. Diagrams.(We carry a wide selection of titles in The Arts, Theology, History, Politics, Social and Physical Sciences. academic and scholarly books and Modern First Editions etc.).…