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This collection of papers presents ideas and problems arising over the past 100 years regarding classical and quantum gravity, gauge theories of gravity, and spacetime transformations of accelerated frames. Both Einstein's theory of gravity and the Yang-Mills theory are gauge invariant. The invariance principles in physics have transcended both kinetic and dynamic properties and are at the very heart of our understanding of the physical world. In this spirit, this book attempts to survey the development of various formulations for gravitational and Yang-Mills fields and spacetime transformations of accelerated frames, and to reveal their associated problems and limitations.The aim is to pres...
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Dana Stabenow's back with another winning installment in A Fine and Bitter Snow Change never comes easy, but it comes just the same, and it's on its way to the Park, to Niniltna, in southeast Alaska. This time it concerns the possibility of drilling for oil in a wildlife preserve near there, near Aleutian P.I. Kate Shugak's home territory. Battle lines are drawn across their community, but at least it gives Kate something to do. Still just months after her lover's violent death, though she doesn't know quite how, she is trying to get back into her daily life. First, tensions run high as their resident park ranger, Dan O'Brien, is deemed "too green for them" by management and asked to take ea...
Through a blend of social and media history, the author explores America's transition from a production-oriented society to a culture of consumption. Because of Dana's strong aversion to the consumerism that accompanied industrial capitalism, the Sun became both the conscience and the advocate for New York's working class. In the words of Joseph Pulitzer, Dana transformed the Sun into "the most piquant, entertaining, and without exception, the best newspaper in the world."
This short, practical guide to the identification of hand specimen minerals utilizes simple methods of observation and inexpensive tools. It gives a guidline on how to collect minerals as well as a tone and language that evoke the charm of an earlier scientific era. A companion volume to the newly revised Dana's New Mineralogy, this book will reward the student of nature seeking an introduction to minerals and their identification.
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