eBooks de Física, página 10 de 53

1919; Arthur Eddington afirma que la teoría de la gravedad de Newton debe ser declarada falsa y sustituida por la que propugna Albert Einstein: la de la relatividad general. Sus conjeturas sólo están al alcance de tres personas, le asegura Ludwik Silberstein a Eddington, que, ante el silencio de su colega, añade No sea modesto, Eddington solo para encontrarse con una replica tan inesperada como reveladora: Todo lo contrario; estoy tratando de imaginar quien puede ser esa tercera persona. Asi arranca La teoria perfecta; situandose al inicio del largo camino recorrido por la hipotesis einsteiniana como punta de lanza de una de las revoluciones epistemologicas mas relevantes del siglo XX. Y es que entender la teoria de la relatividad equivale a comprender la historia del universo, el origen del tiempo y la evolucion de todas las estrellas y galaxias del cosmos. Para que la entendamos, Ferreira nos cuenta un relato que cautiva: uno que empieza en 1907, con Einstein perfilando su teoria en horas arrancadas a su rutinario trabajo en la oficina de patentes de Berna, y que pronto se convierte en una convulsa y accidentada carrera de relevos poblada de experimentos y refutaciones, trabajos colaborativos y enfrentamientos cientificos, errores de calculo e iluminadoras enmiendas. Una carrera donde se entrecruzan historia, biografia y anecdota, ciencia y politica y guerra y religion, con un reparto coral: Eddington y sus trabajos sobre la curvatura de la luz; Friedman y Lemaitre, que llevaron las conjeturas de Einstein mas alla de lo que el propio Einstein estaba dispuesto a llevarlas; Hubble y su demostracion de la expansion del universo; los agujeros negros de Oppenheimer y la radiacion que de ellos predijo que emergeria Hawking. Todos comparecen aqui, hitos en una historia cuya construccion nos revela las virtudes de Pedro G. Ferreira: su firme, vivaz pulso narrador; su equilibrio compositivo; su didactismo nada condescendiente, que no renuncia a la complejidad. Adictiva como la mejor de las novelas, con la ambicion epica de los genios del siglo capturado entre sus paginas, La teoria perfecta hace honor al adjetivo de su titulo; he aqui una guia para atisbar, entre las turbulencias del presente mutable de la fisica, las rutas que nos llevaran mas alla, mas lejos, hacia el futuro.

Tanto si te mueves por las ciencias como pez en el agua, como si no guardas muy buen recuerdo de tu contacto con la física en el instituto, con este libro disfrutarás de los secretos de esta fascinante disciplina. Porque Fisica para Dummies te saca de ese agujero negro y arroja luz sobre los principios generales de la fisica, y sus formulas, de una forma muy agradable y novedosa, como no te los habia explicado nadie. ¡Ya veras que no hace falta ser Einstein para entender la fisica! Ponte en marcha empieza tu viaje echando un vistazo a la aceleracion, la velocidad y el desplazamiento, una fantastica manera de acercarte a la fisica Que la fuerza te acompañe comprende las leyes de Newton y como interactuan las fuerzas iguales pero opuestas, que son la inercia y la masa, la friccion, el equilibrio y mucho mas Pon la fisica a trabajar conoce los secretos para convertir la energia en trabajo, para conservar la energia mecanica y para que el mundo siga girando gracias al movimiento de rotacion Sube la temperatura con la termodinamica descubre todo lo que debes saber sobre la fisica del calor, la temperatura y la ley de los gases perfectos que encontraras en estas paginas

Este livro POExISTÊNCIA Meu Livro de Poemas, traz em sua essência a inspiração dos fenômenos naturais, sociais de percepção de um imenso universo em métrica e poesia. Ele apresenta vários poemas como

Histórias de Meteoritos ou Meteoritos na História? é um livro que mistura o mítico, o científico e a história da humanidade, contando como diferentes civilizações interpretaram a passagem de um meteo

Há algum tempo as discussões a respeito do sistema tributário brasileiro e da necessidade de sua reformulação fazem parte da agenda de debates de toda a sociedade. No entanto, tal questão parece ter

As luzes de Hessdalen são fenômenos luminosos, com diferentes formas geométricas, geralmente globular, não totalmente explicados pela ciência atual, observadas periodicamente em um trecho de 12 quilô

O escoamento de gusa e escória no interior do cadinho tem importante função na zona inferior do alto-forno. Esse fenômeno envolve o transporte de massa e energia e afeta a distribuição do fluxo gasos

O relâmpago globular, raio globular ou ball lightning é um tipo de relâmpago muito raro e não totalmente explicado. Apesar do nome, este pode assumir várias formas geométricas, apresentar diferentes

A teoria das cordas é uma das ciências mais complicadas a serem exploradas hoje em dia. Mas não se preocupe! Este guia informativo explica claramente as bases desse tema polêmico, discute as hipótese

The book is about a new approach to gravity. This means that gravity not only needs the mass of a massive body, but also that the body has angular velocity.

This survey of how astrology works was not written specifically for astrologers. Its purpose is to formulate a materialist theory of what is empirically demonstrated in astrology; our relationship with the cosmos.Starting with the most feeble part of the astrological framework, Annemiek Bosch presents an explanation for the manifestation of the zodiac signs through the year. This cycle appears to be correlated with Earths angular movement towards and away from the supermassive black hole in the center of our Milky Way galaxy.Drawing on the latest scientific insights of quantum physics and consciousness research, she then discusses the mechanism underpinning the astrological practice and makes it plausible that our unconscious minds are able to obtain information from quantum entanglement. Our coherence seems to cause us to collectively create our reality through a process of controlled prediction and automatic adaptation to the cosmic environment.The phenomenon of consciousness instead of arising from individual, isolated brains could be the result of this connectedness.

Este livro aborda conceitos fundamentais de recobrimento de ligas metálicas, proporcionando uma visão básica e compreensão inicial a respeito da técnica Halide Activated Pack Cementation HAPC, aplica

O emprego do modelo atômico orbital de Rutherford-Bohr no ensino de Química é bastante restrito, por considerar os elétrons como partículas massivas pontuais que orbitam o núcleo dos átomos. Essa ide

Holgate guides us expertly and with a deft touch along the journey towards the holy grail of unlimited energy for all. - JIM AL-KHALILIWhat is nuclear fusion? In clear and accessible language, this book explains the basics and the hope for the future. A valuable addition to the Hot Science series. - JOHN GRIBBINCould the Sun hold the key to a future of clean energy? Since the 1950s, scientists have attempted to harness nuclear fusion - the process that creates the Suns energy - to generate near-limitless amounts of electricity. But the fact that we still have no fusion power plants is testament to the complexities of the challenge. Now, the deepening climate crisis means that researchers around the world are in a race to create a mini-Sun here on Earth. The glittering prize is an energy source that emits no greenhouse gases and could solve energy equity and supply issues at a stroke. Sharon Ann Holgate, a former Young Professional Physicist of the Year, tells the compelling story of the ongoing scientific quest for a revolutionary new era of green energy production.

A busca por novas fontes de energia vem da necessidade de romper a dependência com os combustíveis fósseis, cada dia mais escassos e prejudiciais ao meio ambiente. Dentre as alternativas para impleme

The History of the Peloponnesian War Thucydides - With icy remorselessness, it puts paid to any notion that the horrors of modern history might be an aberration - for it tells of universal war, of terrorism, revolution and genocide Tom HollandThe long life-and-death struggle between Athens and Sparta plunged the ancient Greek world into decades of war. Thucydides was an Athenian and achieved the rank of general in the earlier stages of the war, and in this detailed, first-hand contemporary account he writes as both a soldier and a historian. He applies a passion for accuracy and a contempt for myth and romance in compiling a factual record of a ruinous conflict that would eventually destroy the Athenian empire.Commonly acknowledged as one of the earliest first-hand written accounts of history, this classic work chronicles the war between Athens and Sparta during the fifth century B.C. Its author, Thucydides, dispassionately and accurately describes the events of this ancient Greek war in a strict chronology which includes the causes of the conflict, descriptions of battlefield strategy, political opinions, and all other aspects of the war in the brilliant detail of an intellectual and observant eyewitness. Himself an Athenian general who served in the war, Thucydides relates the invasions, treacheries, plagues, amazing speeches, ambitions, virtues, and emotions of the conflict between two of Greeces most dominant city-states in a work that has the feel of a great tragic drama. Though, in part an analysis of war policy, "The History of the Peloponnesian War" is also a dramatic account of the rise and fall of Athens by an Athenian. As such, it provides a historical warning for modern military, political, and international relations. This edition is translated by Richard Crawley and includes a biographical afterword.

***THE INSPIRATION FOR OPPENHEIMER WINNER OF 7 OSCARS, INCLUDING BEST PICTURE, BEST DIRECTOR AND BEST ACTOR***THE SUNDAY TIMES BESTSELLERWINNER OF THE PULITZER PRIZE FOR NONFICTIONReads like a thriller, gripping and terrifyingSunday Times Physicist and polymath, as familiar with Hindu scriptures as he was with quantum mechanics, J. Robert Oppenheimer - director of the Manhattan Project that developed the atomic bomb - was the most famous scientist of his generation. In their meticulous and riveting biography, Kai Bird and Martin J. Sherwin reveal a brilliant, ambitious, complex and flawed man, profoundly involved with some of the momentous events of the twentieth century.

A nossa origem, destino e lugar no mundoUniverso Humano aborda algumas das maiores questões colocadas pelo Homem quando tenta compreender a sua própria natureza e o Universo onde vive. Através dos in

An offbeat guided tour of the Universe, focusing on weird and wonderful facts. Astrophysicist Dr Jillian Scudder knows more than most of us what a surreal place the Universe can be. In this light-hearted book she delves into some of the more arcane facts that her work has revealed, and tells us how we have actually managed to discover these amazing truths. Did you know: the galaxy is flatter than a sheet of paper; supermassive black holes can sing a super-low B flat; it rains iron on a brown dwarf, and diamonds on Neptune; you could grow turnips on Mars if its soil werent full of rocket fuel; the Universe is beige, on average; Jupiters magnetic field will short-circuit your spacecraft - and, of course, the Milky Way smells of rum and raspberries.

Una niña y una pregunta: ¿Dónde esta mi luz bonita? Siempre hemos buscado la luz en todas partes menos en nosotros mismos. Recorremos caminos, valles, cielos y universos para encontrarla. Un día esa luz habla contigo y quiere jugar al escondite. Dalmi, la encontro y supo su nombre. ¿Tu quieres buscarla?