summaries1 - Physics 7C Fall 2009 lecture bullet points I...

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Physics 7C, Fall 2009 lecture bullet points I will write briefly the “bullet points” covered in each lecture. If you missed a lecture, you will definitely need to look at someone’s notes or the textbook, but this may help you know where to look. Lecture I: Newtonian relativity: the Galilean transformation between two reference frames. Implies speed of light depends on reference frame. Contradiction with Michelson-Morley experiment. The laws of physics are the same in all inertial reference frames. No frame is “better” than any other. Before the Michelson-Morley experiment, it was thought that Maxwell’s equations, which include the speed of light, were only valid in one frame–the frame in which the “ether that carries light waves” is stationary. Special relativity finds that light propagates in vacuum (there is no ether) and has the same speed in all frames. Lorentz transformation, derived from requiring that light has same speed in all frames, to relate a
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summaries1 - Physics 7C Fall 2009 lecture bullet points I...

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