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The Road to Reality: A Complete Guide to the Laws of the Universe is a book on modern physics by the British mathematical physicist Roger Penrosepublished in The book discusses the physical world. Many fields that 19th century scientists believed were separate, such as electricity and magnetismare aspects of more fundamental properties.
Penrose,The Emperor´s New Mind – Buscar con Google
Some texts, both popular and university level, introduce these topics as separate concepts, and then reveal their combination much later. The Road to Reality reverses this process, first expounding the underlying mathematics of space—timethen showing how electromagnetism and other phenomena fall out fully formed.
The book is just over pages, of which the first are dedicated to mathematics—Penrose’s goal is to acquaint inquisitive readers with the mathematical tools needed to understand the remainder of the book in depth. Physics enters the discussion on page with the topic of space—time. From there it moves on to fields in spacetime, deriving the classical electrical and magnetic forces from first principles ; that is, if one lives in spacetime of a particular sort, these fields develop naturally desczrgar a consequence.
Energy and conservation pnerose appear in the discussion of Lagrangians and Hamiltoniansbefore moving on to a full discussion of quantum physics, particle theory and quantum field theory. A discussion of the measurement problem in quantum mechanics is given a full chapter; superstrings are given a chapter near the end of the book, as are loop gravity and twistor theory.
The book ends with an exploration of other theories and possible ways forward. The final chapters reflect Penrose’s personal perspective, which differs in some respects from what he regards as the current fashion among theoretical physicists. He is skeptical about string theoryto which he prefers loop quantum gravity. He is optimistic about his own approach, twistor theory.
Javier Sánchez Cañizares, Penrose, R., El camino a la realidad – PhilPapers
He also holds some controversial views about the role of consciousness in physics, as laid out in his earlier books see Shadows of the Mind. From Wikipedia, the free encyclopedia. A Complete Guide to the Laws of the Universe.
Cover of the hardcover edition. A Really Long History of Time”.
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