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Callender C. Introducing Time: A Graphic Guide

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Callender C. Introducing Time: A Graphic Guide
Icon Books Ltd, 2012. – 176 p. – ISBN: 1848311206
What is time? The 5th-century philosopher St. Augustine famously said that he knew what time was, so long as no one asked him. Is time a fourth dimension similar to space or does it flow in some sense? And if it flows, does it make sense to say how fast? Does the future exist? Is time travel possible? Why does time seem to pass in only one direction?
These questions and others are among the deepest and most subtle that one can ask, but Introducing Time presents them—many for the first time—in an easily accessible, lucid and engaging manner, wittily illustrated by Ralph Edney.
Что такое время? Св. Августин - философ 5-ого столетия классно сказал, что он знал, во сколько был, пока никто не спросил его. Действительно ли время - четвертое измерение, подобное, чтобы сделать интервалы, или оно течет в некотором смысле? И если это течет, имеет смысл говорить как быстро? Будущее существует? Действительно ли путешествие во времени возможно? Почему отбывает срок, кажется, проходят только в одном направлении?
Эти вопросы и другие среди самого глубокого и самыми тонкими, который можно спросить, но Время Представления представляет их многих в течение первого раза - в легкодоступной, ясной и привлекательной манере, остроумно иллюстрированной Ralph Edney.
What is Time?
All Kinds of Clocks
Biological Clocks
Psychological Time
Is Time Merely in the Head?
Clocks and Time
How Long is an Interval of Time?
The Most Reliable Clocks
The Atomic Clock
Absolute, True and Mathematical Time
True Time
Opponents of Newtonian Time: Relationalism
A Scenario of Time without Change
Can Relationalism replace Absolute Time?
A Universe Out of Sync?
The Nature of Time: Relative and Non-Relative
Tenseless and Tensed Theories of Time
Tensed Time
Tenseless Time
Representing Dimensions
The Fourth or Time Dimension
Diagrams of Space and Time
Picture of a “Tenseless” Life
The Now and the Here
The Problem of Motion and Change
McTaggart’s Argument
Avoiding McTaggart’s Trap
How Fast Does Time Flow?
Galilean Relativity
Frames of Reference
Einstein’s Relativity
Simultaneity is Relative to the Observer
The Spacetime Event
Time and Observer Dependency
Relativity and Tenses
Does Logic Allow Time Travel?
The Logic of Impossibility
The Book That No One Wrote
The Causal Loop
A Logical Contradiction of Time Travel
Logical Contradictions Cannot Occur
Personal Time
Dying at a Time Earlier Than Your Birth
Future Compatibility
Can We Change the Past?
Can We Affect the Past?
Two Sorts of Time Travel Stories
Does Physics Allow Time Travel?
Moving Clocks Run Slower
Small Savings in Time
General Relativity and Four-dimensional Curvature
Why We Don’t Need a Fifth Dimension
Spacetime Curvature
General Relativity and Time Travel
Gödel’s Rotating Universe
Spacetime in a Rotating Universe
The Effect of Spacetime Curvature
Taub-NUT-Misner Spacetime
Gödel’s Complete Spacetime Travel
Is Gödelian Time Travel Possible?
Gödel Against Tenses
Another Problem for the Tensed Theory
Was Gödel Wrong?
Cosmic String Theory
Wormholes in Spacetime
Wormholes May Not Allow Travel
Exotic Possibilities For Time
Möbius Twist in Space
Möbius Twist in Time
Branching Time
Does Space “Run Out”?
Finite Space Without Limit
Geroch’s Theorem
Eternal Recurrence
Travelling to Big Bang
A Philosophical Objection
Closed and Open Time
To Sum Up, So Far …
The Direction of Time
“Irreversible” Processes
Time Reversal Invariance
Seeing in Terms of Particles
The Science of Heat
Spontaneous Processes
The Law of Entropy
The Problem of Newtonian Particles, Again
Statistical Mechanics
A Statistical Asymmetry
Is Reversal Probable?
The Most Probable State of Entropy
The Loschmidt Paradox
In What Direction Does Entropy Increase?
The Universe’s Statistical Development
The Boundary Conditions of the Universe
An Unlikely Hypothesis
Why Does Entropy Really Increase?
The “Temporal Double Standard”
A Reversal of Time’s Arrow
Communication with the Time Reversed?
Time-reversed Communication
Quantum Gravity: The End of Time?
The Wheeler-DeWitt Equation
Rounding-up of Positions
The Perfect or “Master” Clock
The Inexistence of Time
A Better-known Mystery
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