这本书在逻辑和经验上都严格处理物理时间的概念，是独一无二的。中心主题是物理时间和宇宙引力之间的密切关系。它以通俗易懂的方式确立并解释了一个在现代物理学发展中被忽略的重要物理事实，即宇宙中物质和能量的巨大引力是相对论时间的控制者和原因。书中的材料是准确的，没有时间及其修改（膨胀）、时钟同步和同时性的讨论中的歧义。这些内容超出了当前的相对论，这些相对论未能将宇宙引力纳入其结构中。关于卫星导航系统（如GPS）中时钟的讨论是最完整、最准确的。这本书提供了一些新的见解，也是唯一一本关于时间的完整物理真理的论文。这些内容面向广泛的读者，从普通读者、学生到经验丰富的研究人员，也将很好地吸引哲学家和物理学史学家。这本书能够以前所未有的清晰和无悖论的方式处理有关物理时间的难题。
Gravity’s Time
This book is unique and exceptional in dealing with the notion of physical time rigorously, both logically and empirically. The central theme is the intimate relation between physical time and cosmic gravity. It establishes and explains, in an accessible manner, the one crucial physical fact that has been missed in the development of modern physics—that the enormous gravity of the matter and energy in the Universe is the controller and cause of the relativistic time. The material in the book is accurate and free of the ambiguities in the discussion of time and its modifications (dilation), synchronization of clocks, and simultaneity. The contents go beyond the current theories of relativity that fail to incorporate the cosmic gravity in their structure. The discussion of clocks in satellite navigational systems (like the GPS) is the most complete and accurate. The book offers several new insights, and it is the only available treatise on the complete physical truth about time. The contents are addressed to a wide range of readers, from general readers and students to experienced researchers, and will also appeal well to philosophers and historians of physics. This book has the enabling quality to deal with difficult questions about physical time, with unprecedented clarity and without paradoxes.
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