The bestselling A Level text which contains advice from leading authorities in the field of geography research.

    Clear instructions, diagrams, and photographs show how to build projects ranging from the simple—a match-powered rocket—to the more complex—a scale-model, table-top catapult—to the offbeat—a tennis ball cannon. With a strong emphasis on safety, the book also gives tips on troubleshooting, explains the physics behind the projects, and profiles scientists and extraordinary experimenters such as Alfred Nobel, Robert Goddard, and Isaac Newton. This book will be indispensable for the legions of backyard toy-rocket launchers and fireworks fanatics who wish every day was the fourth of July.

    This third edition, entitled Medical Parasitology in the Philippines, contains an updated version of the global, regional, and national status of parasitic diseases, with particular focus on the Philippines, as well as Southeast Asia and the Western Pacific Regions. In this latest edition, the life cycles developed by the United States Centers for Disease Control and Prevention are utilized, and as in the other earlier editions, Bench Aids developed by the World Health Organization are included for reference purposes. For the first time, relevant policies and guidelines from the Department of Health are listed for further guidance of the readers. This edition also includes new sections that address recent developments in the field and nationally relevant global interests such as neglected tropical diseases, preventive chemotherapy, emporiatrics, and laboratory biosafety.

    It follows a more quantitative and design-oriented approach than other texts in the market, helping readers gain a better understanding of important concepts. They'll also discover how material properties relate to the process variables in a given process as well as how to perform manufacturing science and quantitative engineering analysis of manufacturing processes.

    These tiny, ghostly particles are formed by the billions in stars and pass through us constantly, unseen, at almost the speed of light. Yet half a century after their discovery, we still know less about them than all the other varieties of matter that have ever been seen. In this engaging, concise volume, renowned scientist and popular writer Frank Close gives a vivid account of the discovery of neutrinos and our growing understanding of their significance, also touching on some speculative ideas concerning the possible uses of neutrinos and their role in the early universe. Close begins with the early history of the discovery of radioactivity by Henri Becquerel and Marie and Pierre Curie, the early model of the atom by Ernest Rutherford, and problems with these early atomic models, and Wolfgang Pauli's solution to that problem by inventing the concept of neutrino (named by Enrico Fermi, neutrino being Italian for little neutron). The book describes how the confirmation of Pauli's theory didn't occur until 1956, when Clyde Cowan and Fred Reines detected neutrinos, and reveals that the first natural neutrinos were finally detected by Reines in 1965 (before that, they had only been detected in reactors or accelerators). Close takes us to research experiments miles underground that are able to track neutrinos' fleeting impact as they pass through vast pools of cadmium chloride and he explains why they are becoming of such interest to cosmologists--if we can track where a neutrino originated we will be looking into the far distant reaches of the universe. In telling the story of the neutrino, Close offers a fascinating portrait of a strand of modern physics that sheds light on everything from the workings of the atom and the power of the sun.

    The present work is free from all prejudices and never subscribes to any of these blindly biased views.It has given an impartial or dispassionate view on spiritualism showing wisely and ably it's merits and demerits,it's bright and dark sides as well.All the problems of soul,pre-existence,immortality,reincarnation and eternality have been clearly solved by the Philosopher Saint Swami Abhedananda in these lectures in a remarkably lucid and characteristic style of his own.The Book,originally printed in the year 1944 has run into eight editions printed in 2005.