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Physics
Showing 409–411 of 411 results
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by G S Nusinovich , Language: English
As unique sources of coherent high-power, microwave, and millimeter-wave radiation, gyrotrons are an essential part of the hunt for controlled fusion. Presently, gyrotrons are actively used for electron cyclotron resonance plasma heating and current drive in various controlled fusion reactors. These sources have been under development in many countries for more than forty years. In spite of their widespread use, however, there is as yet no single book to introduce non-specialists to this vital field.N
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Now Gregory S. Nusinovich, an early pioneer of the gyrotron and widely regarded today as the world’s leading authority on the subject, explains the fundamental physical principles upon which gyrotrons and related devices operate. Nusinovich first sets forth some "rules of thumb" that allow readers to understand gyrotron operation in simple terms. He then explores the fundamentals of the general theory of gyrotrons and offers an overview of the various types of gyro-devices, including gyromonotrons, gyroklystrons, gyro-traveling-wave tubes, and gyrotwystrons. He explains not only the theory, linear and nonlinear, but also the practical challenges that users of such devices face. This book will be of interest to undergraduate and graduate students as well as to those who develop gyrotrons or who use them in various applications. It should also appeal to plasma physicists interested in charged-particle dynamics, as well as to applied physicists needing to know more about micro- and millimeter-wave technologies.
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by I Prigogine , Language: English
Ilya Prigogine (1917-2003) was a Russian-born naturalized Belgian physical chemist and Nobel Laureate noted for his work on dissipative structures, complex systems, and irreversibility. This 1980 book was perhaps his first work intended for a "general reader" (see his Order Out of Chaos, Is Future Given?, and The End of Certainty for later, easier-to-read books).He has three main theses: (1) "irreversible processes are as REAL as reversible ones." (2) "irreversible processes play a fundamental CONSTRUCTIVE role in the physical world.&
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" (3) "irreversibility is deeply rooted in dynamics." He adds, "This formulation leads to a unified picture that enables us to relate many aspects of our observations of physical systems to biological ones. The intention is not to ‘reduce’ physics and biology to a single scheme, but to clearly define the various levels of description and to present conditions that permit us to pass from one level to another."One of his key paragraphs (pg. 83-84) is this: "Biological order is both architectural and functional; furthermore, at the cellular and supercellular levels, it manifests itself by a series of structures and coupled functions of growing complexity and hierarchical character. This is contrary to the concept of evolution as described in the thermodynamics of isolated systems, which leads simply … to ‘disorder.’ … The unexpected new feature is that nonequilibrium may … lead to a new type of structure, the DISSIPATIVE structures, which are essential in the understanding of coherence and organization in the nonequilibrium world in which we live."
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by Kenneth William Ford , Language: English
In this engaging scientific memoir, Kenneth Ford recounts the time when, in his mid-twenties, he was a member of the team that designed and built the first hydrogen bomb. He worked with — and relaxed with — scientific giants of that time such as Edward Teller, Enrico Fermi, Stan Ulam, John von Neumann, and John Wheeler, and here offers illuminating insights into the personalities, the strengths, and the quirks of these men. Well known for his ability to explain physics to nonspecialists, Ford also brings to life the physics of fission and fusion and provides a brief history of nuclear science from the discovery of radioactivity in 1896 to the ten-megaton explosion of "Mike" that obliterated a Pacific Island in 1952.F
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Ford worked at both Los Alamos and Princeton’s Project Matterhorn, and brings out Matterhorn’s major, but previously unheralded contribution to the development of the H bomb. Outside the lab, he drove a battered Chevrolet around New Mexico, a bantam motorcycle across the country, and a British roadster around New Jersey. Part of the charm of Ford’s book is the way in which he leavens his well-researched descriptions of the scientific work with brief tales of his life away from weapons.Readership: A memoir for general readership in the history of science.
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