Libros de Física, página 20 de 365

#1 "NEW YORK TIMES" BESTSELLER When and how did the universe begin? Why are we here? What is the nature of reality? Is the apparent "grand design" of our universe evidence of a benevolent creator who set things in motion--or does science offer another explanation? In this startling and lavishly illustrated book, Stephen Hawking and Leonard Mlodinow present the most recent scientific thinking about these and other abiding mysteries of the universe, in nontechnical language marked by brilliance and simplicity. According to quantum theory, the cosmos does not have just a single existence or history. The authors explain that we ourselves are the product of quantum fluctuations in the early universe, and show how quantum theory predicts the "multiverse"--the idea that ours is just one of many universes that appeared spontaneously out of nothing, each with different laws of nature. They conclude with a riveting assessment of M-theory, an explanation of the laws governing our universe that is currently the "only" viable candidate for a "theory of everything" the unified theory that Einstein was looking for, which, if confirmed, would represent the ultimate triumph of human reason.

For junior/senior-level electricity and magnetism courses.This book is known for its clear, concise, and accessible coverage of standard topics in a logical and pedagogically sound order. The highly polished Fourth Edition features a clear, easy-to-understand treatment of the fundamentals of electromagnetic theory, providing a sound platform for the exploration of related applications (AC circuits, antennas, transmission lines, plasmas, optics, etc.). Its lean and focused approach employs numerous new examples and problems. Features The book features a friendly, informal style.Focuses clearly on basic electromagnetic theory, providing a sound platform for future exploration of related applications (such as AC circuits, antennas, transmission lines, plasmas, optics, etc.). A large collection of problems includes short, highly-focused problems that are placed immediately following the relevant text section while longer/more broadly-based problems are at the end of the chapter. Features a more extensive coverage of radiation theory than most texts at this level. Zum Seitenanfang New to this Edition Edits to the entire text have clarified arguments and eliminated ambiguities. New problems and new worked examples appear throughout, while selected unsuccessful ones have been eliminated. All 450 figures have been reviewed for accuracy and updated where necessary. A new section on magnetic work helps to eliminate teachers misconception that magnetic forces do not work.The new section fully explores the actual mechanism in cases where magnetic forces are actually working. Erroneous passages have been corrected. In particular, misleading copy (specifically the treatment of hidden momentum) has been fixed. Citations of recent literature appear throughout for those who wish to pursue a particular topic in greater depth. This literature helps reinforce the point that electrodynamics is a vibrant and dynamic field, even after 150 years.

Combustion, the process of burning, is defined as a chemical reaction between a combustible reactant (the fuel) and an oxidizing agent (such as air) in order to produce heat and in most cases light while new chemical species (e.g., flue gas components) are formed. This book covers a gap on the market by providing a concise introduction to combustion. Most of the other books currently available are targeted towards the experienced users and contain too many details and/or contain knowledge at a fairly high level. This book provides a brief and clear overview of the combustion basics, suitable for beginners and then focuses on practical aspects, rather than theory, illustrated by a number of industrial applications as examples. The content is aimed to provide a general understanding of the various concepts, techniques and equipment for students at all level as well as practitioners with little or no prior experience in the field. The authors are all international experts in the field of combustion technology and adopt here a clear didactic style with many practical examples to cover the most common solid, liquid and gaseous fuels. The associated environmental impacts are also discussed so that readers can develop an understanding of the major issues and the options available for more sustainable combustion processes. With a foreword by Katharina Kohse-Hoinghaus

Els temes relacionats amb les oscil·lacions o vibracions es troben tant en les assignatures de física general dels primers cursos universitaris com en les assignatures tècniques d'especialització del

“Newton y la gravedad” presenta una instantánea brillante de la vida y la obra de este científico dentro de su contexto histórico, y explica, de un modo claro y accesible, el significado y la trascen

The book contains invited lectures from the International Symposium on the Anisotropic Behaviour of Damaged Materials, held in Krakow, Poland, September 9-11, 2002. Eminent researchers and world experts in the field of damage mechanics report recent achievements and state-of-the-art results in the field. The book deals with the anisotropic damage mechanics involving micromechanical aspects and thermo-mechanical coupling. The contents are both of academic interest and relevant for practical applications, especially those concerning more advanced anisotropic models of materials and the transition from the microscopic to the macroscopic level.

Esta edición ofrece una presentación clara y completa de la teoría y las aplicaciones de la mecánica de materiales. El texto ha sido mejorado significativamente en relación con las ediciones anteriores, de manera que tanto el profesor como el estudiante obtengan el apoyo didactico que requieren y encuentren mas ameno el material.Cada seccion del texto se reviso con cuidado, en muchas areas el material se volvio a escribir con el fin de explicar de mejor manera los conceptos.Los problemas fundamentales ofrecen a los lectores aplicaciones simples de los conceptos vistos en el capitulo, con el fin de desarrollar sus habilidades para resolver ciertas dificultades antes de intentar solucionar los problemas estandar que le siguen.Los problemas conceptuales estan planeados para que los estudiantes razonen sobre una situacion de la vida real ejemplificada en una fotografia.Se agregaron mas de 44 fotografias de aplicaciones reales que ilustran los ejemplos que se presentan a lo largo del libro.Contiene alrededor de 550 problemas nuevos, algunos con aplicaciones a campos recientes de la ingenieria.

Il piú divertente, istruttivo e sorprendente manuale di fisica che abbiate mai letto. Partendo dai superpoteri degli eroi dei fumetti, un illustre scienziato costruisce una vera e propria guida alle leggi fisiche dell''universo. Da Newton all''Uomo Ragno, da Superman alla meccanica quantistica.Quanta forza serve a Superman per raggiungere con un solo balzo il tetto di un grattacielo? Come puo Tempesta degli X-Men controllare gli agenti atmosferici? E quanti cheeseburger dovrebbe mangiare Flash per correre a velocita supersonica?In questo sorprendente e brillante saggio scientifico James Kakalios ci mostra che la fisica puo svelare non solo il segreto della potenza dell''Uomo d''Acciaio, ma anche la reale causa di distruzione del suo pianeta d''origine, Krypton.Spaziando dall''energia alla termodinamica, alla fisica dello stato solido, Kakalios chiarisce come la Donna Invisibile dei Fantastici Quattro possa vedere quando e trasparente e ci insegna che la teoria elettromagnetica riesce a spiegare persino come il Professor X sia in grado di leggere nella mente degli altri...

Desde el inicio hasta el final del tiempo.250 hitos en la historia del espacio y la astronomía. Un extraordinario compendio de todo aquello que importa, ha importado o importará acerca del universo. Ademas de ser una enorme fuente de informacion, el libro es sumamente agradable de ojear y aun mas de leer.

El propósito de este módulo es interpretar e interrelacionar cambios y transformaciones de la materia y la energía a partir de demostraciones analíticas y aplicaciones tecnológicas que permitan explicar la naturaleza de la vida cotidiana.

Esta obra expone de forma amplia, pero también clara y concisa, los principios fundamentales de la Física básica a lo largo de catorce capítulos en los que se plantean demostraciones matemáticas con todos los pasos seguidos. Ademas, para amenizar la lectura, se intercalan en el texto algunas curiosidades o se citan aplicaciones practicas que tienen los conceptos presentados en la vida real.Asi mismo, para facilitar la comprension de los contenidos, todos los capitulos finalizan con una serie de simulaciones interactivas originales, en archivos html, por lo que no se requiere la instalacion de ningun programa. El lector puede acceder a las simulaciones en la pagina web y usarlas para repasar la teoria ya estudiada o para interactuar con ellas, modificando los valores numericos de las variables que intervienen en cada simulacion, con el fin de comprobar los resultados de los ejercicios propuestos en clase.

This excellent and novel scientific work has given an area of key research a significant step forward. The systematic documentation of the approach to describing phase transitions will facilitate further applications of the theory to important problems. | A thermodynamically consistent description of the transport across interfaces in mixtures has for a long time been an open issue. This research clarifies that the interface between a liquid and a vapor in a mixture is in local equilibrium during evaporation and condensation. It implies that the thermodynamics developed for interfaces by Gibbs can be applied also away from equilibrium, which is typically the case in reality. A description of phase transitions is of great importance for the understanding of both natural and industrial processes. For example, it is relevant for the understanding of the increase of CO2 concentration in the atmosphere, or improvements of efficiency in distillation columns. This excellent work of luminescent scientific novelty has brought this area a significant step forward. The systematic documentation of the approach will facilitate further applications of the theoretical framework to important problems.