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Plate Tectonics: A Very Short Introduction
The 1960s revealed a new and revolutionary idea in geological thought: that the continents drift with respect to one another. After having been dismissed for decades as absurd, the concept gradually became part of geology's basic principles. We now know that the Earth's crust and upper mantle consist of a small number of rigid plates that move, and there are significant boundaries between pairs of plates, usually known as earthquake belts. Plate tectonics now explains much of the structure and phenomena we see today: how oceans form, widen, and disappear; why earthquakes and volcanoes are found in distinct zones which follow plate boundaries; how the great mountain ranges of the world were b...
Plate Tectonics: A Very Short Introduction
La 4e de couv. indique : "The concept of plate tectonics is relatively new - it was only in the 1960s that the idea that continents drifted with respect to one another came to be accepted. Plate tectonics now forms one of geology's basic principles and explains much of the large-scale structure and phenomena we see on Earth today. In this Very Short Introduction Peter Molnar explores the impact that plate tectonics has had on our understanding of Earth : how the ocean floor forms, widens, and disappears ; why earthquakes and volcanoes are found in distinct zones ; and how the great mountain ranges of the world were built. As the Himalaya continues to grow, the Atlantic widens, and new ocean floor is forming, the mechanisms of plate tectonics continue to alter the surface of our planet."
The Content and Context of Hate Speech
The contributors to this volume consider whether it is possible to establish carefully tailored hate speech policies that are cognizant of the varying traditions, histories and values of different countries. Throughout, there is a strong comparative emphasis, with examples (and authors) drawn from around the world. All the authors explore whether or when different cultural and historical settings justify different substantive rules given that such cultural relativism can be used to justify content-based restrictions and so endanger freedom of expression. Essays address the following questions, among others: is hate speech in fact so dangerous or harmful to vulnerable minorities or communities as to justify a lower standard of constitutional protection? What harms and benefits accrue from laws that criminalize hate speech in particular contexts? Are there circumstances in which everyone would agree that hate speech should be criminally punished? What lessons can be learned from international case law?
Free Speech and Censorship Around the Globe
This book focuses on regulatory challenges of creating and sustaining freedom of speech and freedom of information two decades after the fall of the Berlin wall, in global, comparative context. Some chapters overview, others address specific issues, or describe country case studies. Instead of trying to provide an exhaustive assessment which in one volume might not reach deeper analyzes of contextual details, this book will shed light on and help better understanding of general challenges for freedom of speech and information through varying comparative examples and highlighting important regulatory questions.
Pavel Molnar
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A to Z of Earth Scientists
Profiles more than 150 scientists from around the world who made important contributions to the study of earth science, including Don L. Anderson, Marie Luisa Crawford, Hans P. Eugster, Marshall Kay, and Manik Talwani.
Light
Introduces readers to the basic properties of light -reflection and refraction, polarization, and interference- before moving on to how light is generated, its role in relativity, and quantum effects it exhibits.
