It's About Time
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N. David Mermin
About this book
In It's About Time, N. David Mermin asserts that relativity ought to be an important part of everyone's education--after all, it is largely about time, a subject with which all are familiar. The book reveals that some of our most intuitive notions about time are shockingly wrong, and that the real nature of time discovered by Einstein can be rigorously explained without advanced mathematics. This readable exposition of the nature of time as addressed in Einstein's theory of relativity is accessible to anyone who remembers a little high school algebra and elementary plane geometry.
The book evolved as Mermin taught the subject to diverse groups of undergraduates at Cornell University, none of them science majors, over three and a half decades. Mermin's approach is imaginative, yet accurate and complete. Clear, lively, and informal, the book will appeal to intellectually curious readers of all kinds, including even professional physicists, who will be intrigued by its highly original approach.
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Frontmatter
i -
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Contents
vii -
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Preface: Why Another Relativity Book
ix -
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Note to Readers
xiv -
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One. The Principle of Relativity
1 -
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Two. Combining (Small) Velocities
14 -
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Three. The Speed of Light
19 -
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Four. Combining (Any) Velocities
28 -
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Five. Simultaneous Events; Synchronized Clocks
45 -
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Six. Moving Clocks Run Slowly; Moving Sticks Shrink
58 -
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Seven. Looking At a Moving Clock
73 -
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Eight. The Interval between Events
79 -
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Nine. Trains of Rockets
89 -
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Ten. Space-Time Geometry
102 -
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Eleven. E = Mc2
144 -
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Twelve. A Bit about General Relativity
171 -
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Thirteen. What Makes It Happen?
179 -
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INDEX
187