THE ROAD TO REALITY

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The Road To Reality

Author : Roger Penrose
ISBN : 9781446418208
Genre : Science
File Size : 71.23 MB
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The Road to Reality is the most important and ambitious work of science for a generation. It provides nothing less than a comprehensive account of the physical universe and the essentials of its underlying mathematical theory. It assumes no particular specialist knowledge on the part of the reader, so that, for example, the early chapters give us the vital mathematical background to the physical theories explored later in the book. Roger Penrose's purpose is to describe as clearly as possible our present understanding of the universe and to convey a feeling for its deep beauty and philosophical implications, as well as its intricate logical interconnections. The Road to Reality is rarely less than challenging, but the book is leavened by vivid descriptive passages, as well as hundreds of hand-drawn diagrams. In a single work of colossal scope one of the world's greatest scientists has given us a complete and unrivalled guide to the glories of the universe that we all inhabit.
Category: Science

Plotinus

Author : John M. Rist
ISBN : LCCN:67017009
Genre :
File Size : 76.77 MB
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Plotinus Road To Reality

Author : John M. Rist
ISBN : 0521060850
Genre : History
File Size : 43.92 MB
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This 1967 study begins with a brief biography of Plotinus, and goes on to discuss Plotinus' concept of the one, the logos and free will.
Category: History

The Road To Reality

Author : Gordon Shaw
ISBN : LCCN:53000864
Genre : New Thought
File Size : 42.70 MB
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Category: New Thought

The Nature Of Space And Time

Author : Stephen Hawking
ISBN : 1400834740
Genre : Science
File Size : 42.3 MB
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Einstein said that the most incomprehensible thing about the universe is that it is comprehensible. But was he right? Can the quantum theory of fields and Einstein's general theory of relativity, the two most accurate and successful theories in all of physics, be united into a single quantum theory of gravity? Can quantum and cosmos ever be combined? In The Nature of Space and Time, two of the world’s most famous physicists—Stephen Hawking (A Brief History of Time) and Roger Penrose (The Road to Reality)—debate these questions. The authors outline how their positions have further diverged on a number of key issues, including the spatial geometry of the universe, inflationary versus cyclic theories of the cosmos, and the black-hole information-loss paradox. Though much progress has been made, Hawking and Penrose stress that physicists still have further to go in their quest for a quantum theory of gravity.
Category: Science

Utopia On Wheels

Author : Timothy McGettigan
ISBN : UOM:39015050129157
Genre : Social Science
File Size : 56.39 MB
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Utopia on Wheels is a readable, interesting, and accessible introduction to contemporary social issues and theories. Through an exploration of the Green Tortoise, a San Francisco travel company that is dedicated to counter-culture adventures, McGettigan uses three separate journeys as a means to examine the relationship between self and society. In this manner, he provides an entry-point for mass audiences to consider important sociological issues including the nature of social power, the problem of social order, and the ways in which individuals may produce change in a global society.
Category: Social Science

Fashion Faith And Fantasy In The New Physics Of The Universe

Author : Roger Penrose
ISBN : 9781400880287
Genre : Science
File Size : 53.18 MB
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What can fashionable ideas, blind faith, or pure fantasy possibly have to do with the scientific quest to understand the universe? Surely, theoretical physicists are immune to mere trends, dogmatic beliefs, or flights of fancy? In fact, acclaimed physicist and bestselling author Roger Penrose argues that researchers working at the extreme frontiers of physics are just as susceptible to these forces as anyone else. In this provocative book, he argues that fashion, faith, and fantasy, while sometimes productive and even essential in physics, may be leading today's researchers astray in three of the field's most important areas—string theory, quantum mechanics, and cosmology. Arguing that string theory has veered away from physical reality by positing six extra hidden dimensions, Penrose cautions that the fashionable nature of a theory can cloud our judgment of its plausibility. In the case of quantum mechanics, its stunning success in explaining the atomic universe has led to an uncritical faith that it must also apply to reasonably massive objects, and Penrose responds by suggesting possible changes in quantum theory. Turning to cosmology, he argues that most of the current fantastical ideas about the origins of the universe cannot be true, but that an even wilder reality may lie behind them. Finally, Penrose describes how fashion, faith, and fantasy have ironically also shaped his own work, from twistor theory, a possible alternative to string theory that is beginning to acquire a fashionable status, to "conformal cyclic cosmology," an idea so fantastic that it could be called "conformal crazy cosmology." The result is an important critique of some of the most significant developments in physics today from one of its most eminent figures.
Category: Science

The Road To Damascus And Beyond

Author : George Sandul
ISBN : 9781469102061
Genre : Self-Help
File Size : 79.26 MB
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In 2003, at the age of sixty-two, I thru-hiked the Appalachian Trail. This is the story about that hike. The Appalachian Trail starts on Springer Mountain, Georgia, and goes through fourteen states in a rather meandering way ending on Mount Katahdin, Maine, a distance of roughly 2,175 miles (depending on the source of information as to the exact distance). My hike started on April 5. I arrived at the base of Mount Katahdin on September 14 and waited in nearby Millinocket until September 21 to complete the hike and climb the final 5.2 miles to the summit. The final day, I was accompanied by our youngest son, Will, who had flown to Boston (from Salt Lake City), rented a car, and drove to Millinocket to join me. Sometimes plans do work out perfectly for September 21 was Kris and my fortieth wedding anniversarythis to emphasize the importance of commitment, which is what this story is all about. Thru-hiking the AT has taken on different meanings through the years since Earl V. Shaffer did it for the first time in 1948, as documented in his book Walking with Spring. His was the epitome, the purist approach as a backpacking venture, carrying his own supplies, tenting and staying in shelters, and walking the entire distance along the designated path as it then existed, but has been subject to a lot of changes since his time. My intention was to do it as closely as possible, adhering to this purist attitude without all of the designer methodology that has come to be acceptable for being considered a modern thru-hiker. And except for 1.1 milesthis is covered in the bookthat is what I did.
Category: Self-Help