دانلود کتاب A Brief History Of Time

In the years since its publication in 1988, Stephen Hawking's A Brief History of Time has established itself as a landmark volume in scientificwriting. It has also become an international publishing phenomenon, translated into forty languages and selling over nine million copies.The book was on the cutting edge of what was then known about the nature of the universe, but since then there have been extraordinary advances in thetechnology of observing both the micro- and the macrocosmic world. These observations have confirmed many of Professor Hawking's theoretical predictionsin the first edition of his book, including the recent discoveries of the Cosmic Background Explorer satellite (COBE), which probed back in time to within 300,000 years of the universe's beginning and revealed the wrinkles in the fabric of space-time that he had projected.Eager to bring to his original text the new knowledge revealed by these many observations, as well as his most recent research, for this revised and expanded edition Hawking has prepared a new introduction to the book, revised and updated the original chapters throughout, and written an entirely new chapter on the fascinating subject of wormholes and time travel.In addition, to heighten understanding of complex concepts that readers may have found difficult to grasp despite the clarity and wit of Hawking's writing, this edition is magnificently enhanced throughout with more than 240 full-color illustrations, including satellite images, photographs made possible by spectacular new technological advances such as the Hubble telescope, and computer- generated images of three- and four-dimensional realities. Detailed captions clarify these illustrations, enabling readers to experience the vastness of intergalactic space, the nature of black holes, and the microcosmic world ofparticle physics in which matter and antimatter collide.A classic work that now brings to the reader the latest understanding of cosmology, The Illustrated A Brief History of Time is the story of the ongoing search for the tantalizing secrets at the heart of time and space.