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发表于2024-11-30
The Nature of Space and Time pdf epub mobi txt 电子书 下载 2024
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 in a single quantum theory of gravity? Can quantum and cosmos ever be combined? On this issue, two of the world's most famous physicists - Stephen Hawking ("A Brief History of Time") and Roger Penrose ("The Emperor's New Mind and Shadows of the Mind") - disagree. Here, they explain their positions in a work based on six lectures with a final debate, all originally presented at the Isaac Newton Institute for Mathematical Sciences at the University of Cambridge. How could quantum gravity, a theory that could explain the earlier moments of the big bang and the physics of the enigmatic objects known as black holes, be constructed? Why does our patch of the universe look just as Einstein predicted, with no hint of quantum effects in sight? What strange quantum processes can cause black holes to evaporate, and what happens to all the information that they swallow? Why does time go forward, not backward? In this book, the two opponents touch on all these questions. Penrose, like Einstein, refuses to believe that quantum mechanics is a final theory. Hawking thinks otherwise, and argues that general relativity simply cannot account for how the universe began. Only a quantum theory of gravity, coupled with the no-boundary hypothesis, can ever hope to explain adequately what little we can observe about our universe. Penrose, playing the realist to Hawking's positivist, thinks that the universe is unbounded and will expand forever. The universe can be understood, he argues, in terms of the geometry of light cones, the compression and distortion of spacetime, and by the use of twistor theory. With the final debate, the reader will come to realize how much Hawking and Penrose diverge in their opinions of the ultimate quest to combine quantum mechanics and relativity, and how differently they have tried to comprehend the incomprehensible.
史蒂芬·霍金(Stephen Hawking),当今世界上继爱因斯坦之后最杰出的理论物理学家,现任剑桥大学卢卡逊数学教授,《时间简史》的作者。
罗杰·彭罗斯(Roger Penrose),当今世界最博学和最有创见的数学物理学家,现任牛津大学罗斯·玻勒数学教授,《星帝新脑》的作者。
借霍金之名卖钱的典型案例,没有本科以上物理学基础根本没有任何可能看得懂这本书,这不是什么“科学普及”著作,没有任何科普读物会有这么海量难懂的公式和坐标图
评分这不搞笑么.... 大多数人相对论都还没学,时空因果性这种纯数学的问题都还没碰过,怎么可能去看引力量子化? 记得高中的时候不知道黑洞是啥,一个不太熟识的大学生把这本书扔给我说里面写的很清楚。我想说如果再看到他我要揍他一顿。
评分这不搞笑么.... 大多数人相对论都还没学,时空因果性这种纯数学的问题都还没碰过,怎么可能去看引力量子化? 记得高中的时候不知道黑洞是啥,一个不太熟识的大学生把这本书扔给我说里面写的很清楚。我想说如果再看到他我要揍他一顿。
评分借霍金之名卖钱的典型案例,没有本科以上物理学基础根本没有任何可能看得懂这本书,这不是什么“科学普及”著作,没有任何科普读物会有这么海量难懂的公式和坐标图
评分这不搞笑么.... 大多数人相对论都还没学,时空因果性这种纯数学的问题都还没碰过,怎么可能去看引力量子化? 记得高中的时候不知道黑洞是啥,一个不太熟识的大学生把这本书扔给我说里面写的很清楚。我想说如果再看到他我要揍他一顿。
The Nature of Space and Time pdf epub mobi txt 电子书 下载 2024