Gravity’s Time

Cover
Half Title
Title Page
Copyright Page
Dedication
Table of Contents
List of Figures
List of Tables
Preface
Acknowledgments
Chapter 1: Time
1.1: Space
1.2: Matter
1.3: Interactions
1.4: Motion and Evolution
1.5: Time, Again
1.6: Time and Space as Essential Unobservables in Physics
1.7: Clocks
1.8: Dynamics and Time
1.9: Time, Frequency, and Quanta
1.10: Being and Time
1.11: Astronomy’s Time
1.12: Our Earth Clock
1.13: The Moon Clock
1.14: Ephemeris Clock
1.15: Cosmological Time
1.16: Anthropic Time
1.16.1: Memory, History, and the Psychological Time
1.16.2: Cinema and Time
1.16.3: Animals and Time
1.16.4: Clock as Life and Life as Clock
1.17: Time in Close-Up
1.18: Summary
Chapter 2: Gravity
2.1: A Slow Thought Experiment
2.2: Gravity as a Force
2.3: Gravity beyond the Pulling Force
2.3.1: More on the Puzzle of Inertia
2.4: Gravity’s Charge
2.5: Gravity as a Modification of Space and Time
2.6: How Can Gravity Act on Void?
2.7: Summary
Chapter 3: Time and Motion
3.1: Relativity and the Propagation of Light
3.2: Relativity and Special Relativity
3.3: Motion and Physical Common Sense
3.4: Motion and Its Physical Reference
3.5: Simultaneity
3.6: Comparing Clocks
3.7: Clock Synchronization
3.7.1: Space-Time Diagrams
3.7.2: Synchronizing with Electromagnetic Signals
3.7.3: Clock Synchronization by Slow Transport
3.8: What Causes Time Dilation?
3.9: Imaginary Time and Real Space
3.10: Can I Change Your Time by Moving My Clock?
3.11: The Twin-Clocks Problem
3.11.1: Einstein’s Resolution of the Twin-Clocks Problem
3.11.2: Time and Acceleration
3.12: Time in Rotating Frames
3.12.1: Clocks on the Geoid of the Rotating Earth
3.13: Motion, Gravity, and Time
3.14: It Must Be Gravity’s Time
3.15: Summary
Chapter 4: Our Universe and Cosmic Gravity
4.1: Leaning on Galileo
4.2: Matter, Gravity, and Metric
4.3: Contents of Our Universe
4.4: Gravity of Our Universe
4.5: The Paradigm of Cosmic Relativity
4.6: Some Results from Cosmic Relativity
4.7: The Cosmic Clock
4.8: Summary
Chapter 5: Gravity’s Time
5.1: Gravitational Time Dilation
5.2: Why Is There a Motional Time Dilation?
5.3: Cosmic Gravity, Clocks, and Time
5.4: Finally, an Obituary for the Twin-Paradox
5.5: Gravity and Clocks
5.5.1: Time Dilation of Atomic Clocks
5.5.2: Time Dilation of Mechanical Clocks
5.6: Time and the ‘Absolute’ Velocity
5.7: Time Asymmetry in Motion at Symmetric Relative Velocity
5.8: The Hafele–Keating Experiment
5.9: Summary
Chapter 6: Interlude on Simultaneity and the One-Way Speed of Light
6.1: Einstein’s Train and Platform Scenario
6.2: The Relative Velocity of Light
6.2.1: General Considerations
6.2.2: One-Way Experiments in Rotating Frames
6.3: Experimental Proof of the Galilean Relative Velocity of Light
6.4: Summary
Chapter 7: The Moving Clocks of Navigational Satellite Systems
7.1: Comparing Clocks, Revisited
7.1.1: Motional Time Dilation
7.1.2: Range Finding
7.2: The Factual Motional Relativity in the GNSS
7.3: Bye, Local Time
7.4: Summary
Chapter 8: The Dissemination of Standard Time
8.1: The Standard Time
8.2: Distribution and Synchronization of Time
8.3: Time Transfer with Electromagnetic Waves
8.3.1: Two-Way Transfer
8.3.2: One-Way Transfer
8.4: Optical Fibre Links
8.5: Summary
Chapter 9: Gravity’s Time in Quantum Mechanics
9.1: Time, Locality, and Causality
9.1.1: Causality in Einstein’s STR
9.2: Quantum Measurements and Time
9.3: Quantum Measurements and the Collapse of the Wavefunction
9.4: The EPR Argument of the Incompleteness of QM
9.4.1: The Origin of the Belief in Nonlocality
9.4.2: Are There Nonlocality and Telepathic Influences?
9.5: Summary
Chapter 10: Apparent Arrows of the Corporeal Time
10.1: The Arrows of Time
10.1.1: The Thermodynamic Arrow of Time
10.1.2: The Cosmological Arrow of Time
10.1.3: The Quantum Mechanical Arrow of Time
10.1.4: Arrows of Time in Life
10.2: Where Is the Bow?
10.3: The True Nature and Essence of Time
10.4: Is Time Reversible?
10.5: Antiparticles as Time-Reversed Particles?
10.6: Closed Loops of Time
10.7: The Dimensions of Time
10.8: Can Time End?
10.9: Summary
Chapter 11: The Last Ticks
11.1: Time and Quantum Gravity
11.2: The Future of Time
Bibliography
Index