The Spinning Magnet

Author: Alanna Mitchell
Publisher: Penguin
ISBN: 1101985186
Format: PDF, Kindle
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An engrossing history of the science of one of the four fundamental physical forces in the universe, electromagnetism, right up to the latest indications that the poles are soon to reverse and destroy the world's power grids and electronic communications A cataclysmic planetary phenomenon is gathering force deep within the Earth. The magnetic North Pole will eventually trade places with the South Pole. Satellite evidence suggests to some scientists that the move has already begun, but most still think it won't happen for many decades. All agree that it has happened many times before and will happen again. But this time it will be different. It will be a very bad day for modern civilization. Award-winning science journalist Alanna Mitchell's delightful storytelling introduces enchanting characters from investigations into magnetism in thirteenth-century France to the discovery in the Victorian era that electricity and magnetism emerge from the same force. No one has ever told so eloquently how the Earth itself came to be seen as a magnet, spinning in space with two poles, and that those poles dramatically, catastrophically reverse now and then... The recent finding that Earth's magnetic force field is decaying faster than previously thought, raising fears of an imminent pole reversal, ultimately gives The Spinning Magnet a spine-tingling urgency. When the poles switch, a process that takes many years, Earth is unprotected from solar radiation storms that would, among other things, wipe out all electromagnetic technology. No satellites, no Internet, no smartphones--maybe no power grid at all. Alanna Mitchell offers a beautifully crafted narrative history of ideas and science that readers of Stephen Greenblatt and Sam Kean will love.

Wie funktioniert MRI

Author: Dominik Weishaupt
Publisher: Springer-Verlag
ISBN: 3662109379
Format: PDF
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Wie schon die beiden vorherigen Auflagen, führt dieses Buch kurz und prägnant in die Physik und Funktionsweise der Magnetresonanztomographie ein. Insbesondere werden alle wichtigen Begriffe, die in der Klinik von Bedeutung sind und die zugrundeliegenden physikalischen Vorgänge verständlich gemacht. Entsprechend liegt der Schwerpunkt auf einem klar strukturierten Aufbau. Alle Kapitel wurden überarbeitet und auf den neuesten Stand des Wissens gebracht. Neu sind die Kapitel "Determinanten des Signal-zu-Rausch-Verhältnisses" und "Sicherheit und Risiken". Der zunehmenden Bedeutung des MRI in der nichtinvasiven Gefässdiagnostik wird mit einem speziellen Kapitel Rechnung getragen. Die Kapitel über MR-Sequenzen wurden neu gegliedert, um der Entwicklung zu immer schnelleren Sequenzen gerecht zu werden. Das Buch richtet sich in erster Linie an Ärzte, MTRAs und Studenten, die sich mit den Grundlagen der MR-Bildgebung vertraut machen wollen.

Paradigm Shift

Author: Alan P. Garfoot
Publisher: Lulu.com
ISBN: 1445293579
Format: PDF, Mobi
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The birth of the new field of Hyperspatial Mechanics in the subject of Physics with new pioneering scientific theory, supporting experiments and subsequent technologies based on originality, innovation and inspiration.

Electromagnetic Mechanical and Transport Properties of Composite Materials

Author: Rajinder Pal
Publisher: CRC Press
ISBN: 149870445X
Format: PDF, ePub
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In the design, processing, and applications of composite materials, a thorough understanding of the physical properties is required. It is important to be able to predict the variations of these properties with the kind, shape, and concentration of filler materials. The currently available books on composite materials often emphasize mechanical properties and focus on classification, applications, and manufacturing. This limited coverage neglects areas that are important to new and emerging applications. For the first time in a single source, this volume provides a systematic, comprehensive, and up-to-date exploration of the electromagnetic (electrical, dielectric, and magnetic), mechanical, thermal, and mass-transport properties of composite materials. The author begins with a brief discussion of the relevance of these properties for designing new materials to meet specific practical requirements. The book is then organized into five parts examining: The electromagnetic properties of composite materials subjected to time-invariant electric and magnetic fields The dynamic electromagnetic properties of composite materials subjected to time-varying electric and magnetic fields The mechanical elastic and viscoelastic properties of composites Heat transfer in composites and thermal properties (thermal conductivity, thermal diffusivity, coefficient of thermal expansion, and thermal emissivity) Mass transfer in composite membranes and composite materials Throughout the book, the analogy between various properties is emphasized. Electromagnetic, Mechanical, and Transport Properties of Composite Materials provides both an introduction to the subject for newcomers and sufficient in-depth coverage for those involved in research. Scientists, engineers, and students from a broad range of fields will find this book a comprehensive source of information.

Principles of Molecular Photochemistry

Author: Nicholas J. Turro
Publisher: University Science Books
ISBN: 9781891389573
Format: PDF, Docs
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Developed from Nick Turro's best-selling text for three decades, Modern Molecular Photochemistry, this book develops photochemical and photophysical concepts from a small set of familiar principles and provides clear descriptions in pictorial terms. This text will be of interest to not only practicing photochemists and their students, but also to biological scientists, polymer scientists, material scientists and nanoscientists.

Case Studies in Superconducting Magnets

Author: Yukikazu Iwasa
Publisher: Springer Science & Business Media
ISBN: 0387098003
Format: PDF, ePub, Docs
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The 2nd edition emphasizes two areas not emphasized in the 1st edition: 1) high-temperature superconductor (HTS) magnets; 2) NMR (nuclear magnetic resonance) and MRI (magnetic resonance imaging) magnets. Despite nearly 40 years of R and D on superconducting magnet technology, most areas, notably fusion and electric power applications, are still in the R and D stage. One exception is in the area of NMR and MRI. NMR magnets are very popular among chemists, biologists, genome scientists, and most of all, by drug manufacturers for drug discovery and development. MRI and NMR magnets have become the most successful application of superconducting magnet technology and this trend should continue. The 2nd edition will have new materials never treated formally in any other book of this kind. As with the 1st, most subjects will be presented through problem format to educate and train the designer.

Mondo Magnets

Author: Fred Jeffers
Publisher: Chicago Review Press
ISBN: 1613742444
Format: PDF, Kindle
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Surprising and seemingly impossible effects result from the 40 experiments included in this fascinating science resource--all based on real magnetic physics. Each experiment--such as using a common refrigerator magnet to create a three-dimensional image or floating a magnet and carbon sheet in midair--is outlined with step-by-step instructions and diagrams that illustrate the key concepts of magnetism. Even the most experienced science teacher or at-home tinkerer will find dozens of new tricks in this amazing collection.

Albert Einstein Historical and Cultural Perspectives

Author: Gerald Holton
Publisher: Princeton University Press
ISBN: 1400855438
Format: PDF, Mobi
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Based on papers presented at the Jerusalem Einstein Centennial Symposium in March 1979, this volume sets forth an articulated sequence of chapters on the impact of Einstein's work, not only in science but in humanistic studies and problems such as international security in the nuclear age. Originally published in 1982. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.