Waves

Author: Fredric Raichlen

Publisher: MIT Press

ISBN: 0262304961

Category: Science

Page: 256

View: 3921

Sitting on the beach on a sunny summer day, we enjoy the steady advance and retreat of the waves. In the water, enthusiastic waders jump and shriek with pleasure when a wave hits them. But where do these waves come from? How are they formed and why do they break on the shore? In Waves, Fredric Raichlen traces the evolution of waves, from their generation in the deep ocean to their effects on the coast. He explains, in a way that is readily understandable to nonscientists, both the science of waves themselves and the technology that can be used to protect us against their more extreme forms, including hurricanes and tsunamis. After offering a basic definition of waves and explaining the mechanics of wind-wave generation, Raichlen describes how waves travel, how they shoal (rise), how they break, and how they transform in other ways. He goes on to describe, among other things, the complicated sun-Earth-moon combinations that create astronomical tides (the high and low tides that occur daily and predictably); the effects of waves on the beach, including rip currents and beach erosion, and on harbors and shipping; and the building of breakwaters to protect harbors and bays. He discusses hurricanes, storm surges, and hurricane-generated waves. He offers a brief history of tsunamis, including Sumatra's in 2004 and Japan's in 2011, and explains the mechanisms that generate them (including earthquakes, landslides, and volcanoes). Waves can be little ripples that lap peacefully at the shore or monstrous tsunamis that destroy everything in their paths. Describing the science underlying this astonishing variety, Waves offers a different kind of beach reading.

Waves: A Very Short Introduction

Author: Mike Goldsmith

Publisher: Oxford University Press

ISBN: 0192525727

Category: Science

Page: 144

View: 9270

We live in a world of waves. The Earth shakes to its foundations, the seas and oceans tremble incessantly, sounds reverberate through land, sea, and air. Beneath the skin, our brains and bodies are awash with waves of their own, and the Universe is filled by a vast spectrum of electromagnetic radiation, of which visible light is the narrowest sliver. Casting the net even wider, there are mechanical waves, quantum wave phenomena, and the now clearly detected gravitational waves. Look closer and deeper and more kinds of waves appear, down to the most fundamental level of reality. This Very Short Introduction looks at all the main kinds of wave, their sources, effects, and uses. Mike Goldsmith discusses how wave motion results in a range of phenomena, from reflection, diffraction, interference, and polarization in the case of light waves to beats and echoes for sound. All waves, however different, share many of the same features, and, as Goldsmith shows, for all their complexities many of their behaviours are fundamentally simple. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

Die technologische Singularität

Author: Murray Shanahan

Publisher: N.A

ISBN: 9783957574404

Category: Science

Page: 270

View: 4055

›Technologische Singularität‹ bezeichnet den Zeitpunkt, an dem von künstlicher Intelligenz gesteuerte Maschinen sich fortlaufend selbst so zu verbessern imstande sind, dass sie sich der Beherrschung durch Menschenhand entziehen. Der Robotikspezialist Murray Shanahan beschreibt die unterschiedlichen derzeit weltweit vorangetriebenen technologischen Entwicklungen, die zu einem solchen Ereignis führen können. Er führt auf verständliche Weise in die komplexen Forschungen ein, die unsere nächste Zukunft verändern werden. Aus der Perspektive eines Praktikers beschäftigt er sich mit der Frage, ob künstliche Intelligenz über Bewusstsein verfügen kann, und entwickelt moralische Ansätze zu einem verantwortlichen Umgang mit dieser zumeist als Katastrophenszenario gezeichneten Zukunftsfantasie.

The Design of Everyday Things

Psychologie und Design der alltäglichen Dinge

Author: Norman Don

Publisher: Vahlen

ISBN: 3800648105

Category: Business & Economics

Page: 320

View: 2801

Apple, Audi, Braun oder Samsung machen es vor: Gutes Design ist heute eine kritische Voraussetzung für erfolgreiche Produkte. Dieser Klassiker beschreibt die fundamentalen Prinzipien, um Dinge des täglichen Gebrauchs umzuwandeln in unterhaltsame und zufriedenstellende Produkte. Don Norman fordert ein Zusammenspiel von Mensch und Technologie mit dem Ziel, dass Designer und Produktentwickler die Bedürfnisse, Fähigkeiten und Handlungsweisen der Nutzer in den Vordergrund stellen und Designs an diesen angepasst werden. The Design of Everyday Things ist eine informative und spannende Einführung für Designer, Marketer, Produktentwickler und für alle an gutem Design interessierten Menschen. Zum Autor Don Norman ist emeritierter Professor für Kognitionswissenschaften. Er lehrte an der University of California in San Diego und der Northwest University in Illinois. Mitte der Neunzigerjahre leitete Don Norman die Advanced Technology Group bei Apple. Dort prägte er den Begriff der User Experience, um über die reine Benutzbarkeit hinaus eine ganzheitliche Erfahrung der Anwender im Umgang mit Technik in den Vordergrund zu stellen. Norman ist Mitbegründer der Beratungsfirma Nielsen Norman Group und hat unter anderem Autohersteller von BMW bis Toyota beraten. „Keiner kommt an Don Norman vorbei, wenn es um Fragen zu einem Design geht, das sich am Menschen orientiert.“ Brand Eins 7/2013 „Design ist einer der wichtigsten Wettbewerbsvorteile. Dieses Buch macht Spaß zu lesen und ist von größter Bedeutung.” Tom Peters, Co-Autor von „Auf der Suche nach Spitzenleistungen“

Roboter

Author: John Jordan

Publisher: N.A

ISBN: 9783737413299

Category:

Page: 335

View: 7975

Das Bild der Stadt

Author: Kevin Lynch

Publisher: Birkhäuser

ISBN: 3035602166

Category: Architecture

Page: 215

View: 1963

Wie orientieren wir uns in einer Stadt? Woher rühren unsere ganz fest umrissenen visuellen Vorstellungen? Um diese Fragen beantworten zu können, studierte Kevin Lynch die Erfahrungen von Menschen und zeigt damit, wie man das Bild der Stadt wieder lebendiger und einprägsamer machen könnte.

New Waves in Philosophy of Science

Author: P. D. Magnus,Jacob Busch

Publisher: Palgrave MacMillan

ISBN: 9780230222649

Category: Philosophy

Page: 288

View: 4974

"This book captures the diverse array of issues in the rapidly developing area of philosophy of science by bringing together a pool of talented young philosophers from across the globe to debate the field and show where it's heading"--Provided by publishe

New Waves in Philosophical Logic

Author: G. Restall,G. Russell

Publisher: Springer

ISBN: 1137003723

Category: Mathematics

Page: 244

View: 8047

Philosophical logic has been, and continues to be, a driving force behind much progress and development in philosophy more broadly. This collection by up-and-coming philosophical logicians deals with a broad range of topics, including, for example, proof-theory, probability, context-sensitivity, dialetheism and dynamic semantics.

Finite-Elemente-Methoden

Author: Klaus-Jürgen Bathe

Publisher: Springer Verlag

ISBN: 9783540668060

Category: Technology & Engineering

Page: 1253

View: 8900

Dieses Lehr- und Handbuch behandelt sowohl die elementaren Konzepte als auch die fortgeschrittenen und zukunftsweisenden linearen und nichtlinearen FE-Methoden in Statik, Dynamik, Festkörper- und Fluidmechanik. Es wird sowohl der physikalische als auch der mathematische Hintergrund der Prozeduren ausführlich und verständlich beschrieben. Das Werk enthält eine Vielzahl von ausgearbeiteten Beispielen, Rechnerübungen und Programmlisten. Als Übersetzung eines erfolgreichen amerikanischen Lehrbuchs hat es sich in zwei Auflagen auch bei den deutschsprachigen Ingenieuren etabliert. Die umfangreichen Änderungen gegenüber der Vorauflage innerhalb aller Kapitel - vor allem aber der fortgeschrittenen - spiegeln die rasche Entwicklung innerhalb des letzten Jahrzehnts auf diesem Gebiet wieder.

Gravitational Waves

Author: I. Ciufolini,V. Gorini,U. Moschella,P Fre

Publisher: CRC Press

ISBN: 1420034251

Category: Science

Page: 412

View: 3362

Gravitational waves (GWs) are a hot topic and promise to play a central role in astrophysics, cosmology, and theoretical physics. Technological developments have led us to the brink of their direct observation, which could become a reality in the coming years. The direct observation of GWs will open an entirely new field: GW astronomy. This is expected to bring a revolution in our knowledge of the universe by allowing the observation of previously unseen phenomena, such as the coalescence of compact objects (neutron stars and black holes), the fall of stars into supermassive black holes, stellar core collapses, big-bang relics, and the new and unexpected. With a wide range of contributions by leading scientists in the field, Gravitational Waves covers topics such as the basics of GWs, various advanced topics, GW detectors, astrophysics of GW sources, numerical applications, and several recent theoretical developments. The material is written at a level suitable for postgraduate students entering the field.

Essentials of Radio Wave Propagation

Author: Christopher Haslett

Publisher: Cambridge University Press

ISBN: 052187565X

Category: Computers

Page: 201

View: 6543

If you need to maximize efficiency in wireless network planning, an understanding of radio propagation issues is vital, and this 2007 reference guide is for you. Using real-world case studies, practical problems and minimum mathematics, the author explains simply and clearly how to predict signal strengths in a variety of situations. Fundamentals are explained in the context of their practical significance. Applications, including point-to-point radio links, broadcasting and earth-space communications, are thoroughly treated, and more sophisticated methods, which form the basis of software tools for both network planning and spectrum management, are also described. For a rapid understanding and insight into radio propagation, sufficient to enable you to undertake real-world engineering tasks, this concise book is invaluable for network planners, hardware designers, spectrum managers, senior technical managers and policy makers who are either new to radio propagation or who need a quick reference guide.

Electromagnetic Waves

Author: Carlo G. Someda

Publisher: CRC Press

ISBN: 9781420009545

Category: Technology & Engineering

Page: 600

View: 2474

Adapted from a successful and thoroughly field-tested Italian text, the first edition of Electromagnetic Waves was very well received. Its broad, integrated coverage of electromagnetic waves and their applications forms the cornerstone on which the author based this second edition. Working from Maxwell's equations to applications in optical communications and photonics, Electromagnetic Waves, Second Edition forges a link between basic physics and real-life problems in wave propagation and radiation. Accomplished researcher and educator Carlo G. Someda uses a modern approach to the subject. Unlike other books in the field, it surveys all major areas of electromagnetic waves in a single treatment. The book begins with a detailed treatment of the mathematics of Maxwell's equations. It follows with a discussion of polarization, delves into propagation in various media, devotes four chapters to guided propagation, links the concepts to practical applications, and concludes with radiation, diffraction, coherence, and radiation statistics. This edition features many new and reworked problems, updated references and suggestions for further reading, a completely revised appendix on Bessel functions, and new definitions such as antenna effective height. Illustrating the concepts with examples in every chapter, Electromagnetic Waves, Second Edition is an ideal introduction for those new to the field as well as a convenient reference for seasoned professionals.

Schnelligkeit durch Vertrauen

die unterschätzte ökonomische Macht

Author: Stephen M. R. Covey,Rebecca R. Merrill

Publisher: GABAL Verlag GmbH

ISBN: 3897499088

Category: Business & Economics

Page: 370

View: 5229

Vertrauen bildet die Grundlage für alle Beziehungen und jede Form der Kommunikation, für alle Individuen, Unternehmen, Organisationen und Zivilisationen rund um den Globus. Mangelndes Vertrauen zerstört auch die erfolgreichsten Unternehmen, die mächtigste Regierung und die florierendste Wirtschaft. Trotz der offensichtlich immensen Macht von Vertrauen spielt es im realen Geschehen kaum eine Rolle und gehört wohl zu den am meisten unterschätzten Faktoren unserer Wirtschaft und Gesellschaft. Stephen M. R. Covey zeigt in seinem viel beachteten Buch „Schnelligkeit durch Vertrauen“, dass Vertrauen kein weicher Faktor ist, sondern ein pragmatischer und realer Wert, den man erschaffen und zur Handlungsgrundlage machen kann. Er präsentiert konkrete Vertrauensregeln und Prinzipien und zeigt, wie auf allen Ebenen eines Unternehmens Vertrauen aufgebaut, gelebt und gefördert werden kann. Seine These: Vertrauen ist eine Schlüsselkompetenz und ein Art Teilchenbeschleuniger für die Wirtschaft.

Waves in Fluids

Author: Sir M. J. Lighthill,James Lighthill

Publisher: Cambridge University Press

ISBN: 9780521010450

Category: Mathematics

Page: 504

View: 3246

This comprehensive text describes the science of waves in fluids.

Grundlagen der Photonik

Author: Bahaa E. A. Saleh,Malvin Carl Teich

Publisher: John Wiley & Sons

ISBN: 9783527406777

Category: Optoelectronics

Page: 1406

View: 1153

Schon die erste Auflage des englischen Lehrbuchs 'Fundamentals of Photonics' zeichnete sich durch seine ausgewogene Mischung von Theorie und Praxis aus, und deckte in detaillierter Darstellung die grundlegenden Theorien des Lichts ab. Es umfasste sowohl die Themen Strahlenoptik, Wellenoptik, elektromagnetische Optik, Photonenoptik, sowie die Wechselwirkung von Licht und Materie, als auch die Theorie der optischen Eigenschaften von Halbleitern. Die Photonik-Technologie hat eine rasante Entwicklung genommen seit der Publikation der ersten Ausgabe von 'Fundamentals of Photonics' vor 15 Jahren. Die nun vorliegende Zweite Auflage des Marksteins auf dem Gebiet der Photonik trägt mit zwei neuen und zusätzlichen Kapiteln den neuesten technologischen Fortschritten Rechnung: Photonische Kristalle sowie Ultrakurzpuls-Optik. Zudem wurden alle Kapitel gründlich überarbeitet und viele Abschnitte hinzugefügt, so z.B. über Laguerre-Gauss Strahlen, die Sellmeier-Gleichung, Photonenkristall-Wellenleiter, photonische Kristallfasern, Mikrosphären-Resonatoren, Optische Kohärenz Tomographie, Bahndrehimpuls des Photons, Bohrsche Theorie, Raman-Verstärker, rauscharme Avalanche-Photodioden, Abstimmkurven und Dispersions-Management.

Inverse Problems and Inverse Scattering of Plane Waves

Author: Dilip N. Ghosh Roy,L. S. Couchman

Publisher: Academic Press

ISBN: 9780080546131

Category: Computers

Page: 336

View: 3105

The purpose of this text is to present the theory and mathematics of inverse scattering, in a simple way, to the many researchers and professionals who use it in their everyday research. While applications range across a broad spectrum of disciplines, examples in this text will focus primarly, but not exclusively, on acoustics. The text will be especially valuable for those applied workers who would like to delve more deeply into the fundamentally mathematical character of the subject matter. Practitioners in this field comprise applied physicists, engineers, and technologists, whereas the theory is almost entirely in the domain of abstract mathematics. This gulf between the two, if bridged, can only lead to improvement in the level of scholarship in this highly important discipline. This is the book's primary focus.

Acoustic and Elastic Wave Fields in Geophysics

Author: Alexander A. Kaufman,Anatoli L. Levshin

Publisher: Gulf Professional Publishing

ISBN: 9780444506429

Category: Nature

Page: 630

View: 1951

This book is a continuation of 'Acoustic and Elastic Wave Fields in Geophysics, Part I' published in 2000. The second volume is dedicated to propagation of linear plane, spherical and cylindrical acoustic waves in different media. Chapter 1 is devoted to principles of geometric acoustic in plane wave approximation. The eikonal and transport equations are derived. Ray tracing and wavefront construction techniques are explained. Chapter 2 deals with dynamic properties of wave fields. The behavior of pressure and displacements amplitudes in zero approximation is analysed in two ways: using Poynting vector and solving the transport equation. This chapter contains several examples related to shadow zones and caustics. In Chapter 3 using the results of analysis of high-frequency wave kinematics and dynamics some fundamental aspects of Kirchhoff migration are described. Chapters 4 and 5 are devoted to propagation of plane waves in media with flat boundaries in the case of normal and oblique incidence. Special attention is paid to the case when an incident angle exceeds the critical angles. Formation of normal modes in the waveguide is discussed. Chapter 6 deals with a spherical wave reflection and refraction. The steepest descent method is introduced to describe the behavior of reflected, transmitted, head and evanescent waves. In Chapter 7 propagation of stationary and transient waves in a waveguide formed by a flat layer with low velocity are investigated. Normal modes and waves related to the branch points of integrands under consideration are studied. Dispersive properties of normal modes are discussed. Chapter 8 describes wave propagation inside cylinder in acoustic media. Several appendices are added to help the reader understand different aspects of mathematics used in the book.

Ocean Waves

The Stochastic Approach

Author: Michel K. Ochi

Publisher: Cambridge University Press

ISBN: 9780521017671

Category: Science

Page: 319

View: 9054

Describes the stochastic method for ocean wave analysis - vital information for design and operation of ships.