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I'm reading Taylor and Wheeler's, Exploring Black Holes.
I was doing okay until I reached their derivation of energy in Special Relativity.
They arrived at this equation:
[tex] \frac{t}{\tau} = \frac{E}{m} [/tex]
Tau is proper time, t is the frame time, E is energy and m is mass.
The authors used the Principle of Extremal Aging to derive the equation. How did they arrive at E/m as a constant of motion?
I was doing okay until I reached their derivation of energy in Special Relativity.
They arrived at this equation:
[tex] \frac{t}{\tau} = \frac{E}{m} [/tex]
Tau is proper time, t is the frame time, E is energy and m is mass.
The authors used the Principle of Extremal Aging to derive the equation. How did they arrive at E/m as a constant of motion?
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