Gravity and Grace was the first ever publication by the remarkable thinker and activist, Simone Weil. In it Gustave Thibon, the farmer to whom she had entrusted her notebooks before her untimely death, compiled in one remarkable volume a compendium of her writings that have become a source of spiritual guidance and wisdom for countless individuals. On the fiftieth anniversary o...(展开全部)

在线阅读本书 On the fiftieth anniversary of the first English edition, this Routledge Classics edition offers the English reader the complete text of this landmark work for the first time ever.

This is an introduction to the basic tools of mathematics needed to understand the relation between knot theory and quantum gravity. The book begins with a rapid course on manifolds and differential forms, emphasizing how these provide a proper language for formulating Maxwell's equations on arbitrary spacetimes. The authors then introduce vector bundles, connections and curvat...(展开全部)

This is an introduction to the basic tools of mathematics needed to understand the relation between knot theory and quantum gravity. The book begins with a rapid course on manifolds and differential forms, emphasizing how these provide a proper language for formulating Maxwell's equations on arbitrary spacetimes. The authors then introduce vector bundles, connections and curvat...(展开全部)

This is an introduction to the basic tools of mathematics needed to understand the relation between knot theory and quantum gravity. The book begins with a rapid course on manifolds and differential forms, emphasizing how these provide a proper language for formulating Maxwell's equations on arbitrary spacetimes. The authors then introduce vector bundles, connections and curvat...(展开全部)

This is an introduction to the basic tools of mathematics needed to understand the relation between knot theory and quantum gravity. The book begins with a rapid course on manifolds and differential forms, emphasizing how these provide a proper language for formulating Maxwell's equations on arbitrary spacetimes. The authors then introduce vector bundles, connections and curvat...(展开全部)

This acclaimed book is a master teacher's tested program for turning clumsy prose into clear, powerful, and effective writing. A logical, expert, easy-to-use plan for achieving excellence in expression, "Style" offers neither simplistic rules nor endless lists of dos and don'ts. Rather, Joseph Williams explains how to be concise, how to be focused, how to be organized. Filled w...(展开全部)

This acclaimed book is a master teacher's tested program for turning clumsy prose into clear, powerful, and effective writing. A logical, expert, easy-to-use plan for achieving excellence in expression, "Style" offers neither simplistic rules nor endless lists of dos and don'ts. Rather, Joseph Williams explains how to be concise, how to be focused, how to be organized. Filled w...(展开全部)

Quantum gravity is perhaps the most important open problem in fundamental physics. It is the problem of merging quantum mechanics and general relativity, the two great conceptual revolutions in the physics of the twentieth century. The loop and spinfoam approach, presented in this 2004 book, is one of the leading research programs in the field. The first part of the book discus...(展开全部)

Quantum gravity poses the problem of merging quantum mechanics and general relativity, the two great conceptual revolutions in the physics of the twentieth century. The loop and spinfoam approach, presented in this book, is one of the leading research programs in the field. The first part of the book discusses the reformulation of the basis of classical and quantum Hamiltonian ...(展开全部)