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worldviews3 - Einstein Special Theory of Relativity First...

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Einstein Special Theory of Relativity First Principles Principle of relativity: there is no privileged point of view to say who is at rest and who is in motion Principle of the constancy of the speed of light: the speed of light measured in a vacuum will always be the same
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Einstein Absolute Space & Absolute Time Inertial Frame (neither rotating nor accelerating) Special Theory of Relativity - Newton’s Laws apply in every inertial frame Maxwell’s Equations, predict c c is the same in every inertial frame c is NOT relative it’s invariant Relativistic effects appear when objects move close to c Time dilation (across frames) Length contraction (across frames) Mass inflation Events across frames may no longer be simultaneous requires Lorentz transformations
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Einstein =>Time & Space are NOT absolute, invariant => “common sense” T&S are NOT empirical facts, it’s a erroneous philosophical belief! Within an inertial frame all laws hold, time and space appear “normal”, BUT measurements across inertial frames show distortion of time and space BUT space-time is invariant s 2 = (x 2 -x 1 ) 2 + (y 2 -y 1 ) 2 + (z 2 -z 1 ) 2 - c 2 (t 2 -t 1 ) 2 c is a proportionality constant, a property of spacetime
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Einstein General Relativity
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