Relativity-Symmetry in Physics
Welcome back to 8.033! Emmy Noether 1882-1935 Image courtesy of Wikipedia.MIT Course 8.033, Fall 2006, Lecture 2 Max Tegmark PRACTICAL STUFF: • PS1 due Friday 4PM • Symmetry notes posted TODAY’S TOPIC: SYMMETRY IN PHYSICS • Key concepts: frame, inertial frame, transformation, invariant, invariance, symmetry, relativity • Key people: Galileo Galileo, Emmy Noether • Symmetry examples: translation, rotation, parity, boost • Million Dollar question: what are the symmetries of physics? What do we mean by symmetry? WHAT’S THE SYMMETRY OF THE UNIVERSE? OF PHYSICS? Figures by MIT OCW. ?Figures by MIT OCW. ?Figures by MIT OCW. ?WHAT’S THE SYMMETRY OF CLASSICAL MECHANICS?Figures by MIT OCW. ?Figures by MIT OCW. ?? Figures by MIT OCW.SO WHICH DO YOU TRUST MORE: Classical Mechanics, or E&M?
Description
The lecture compares the concept of symmetry of universe with that of classical mechanics.Symmetry examples considered are translation, rotation, parity and boost.It lists the use of different kinds of symmetry, namely, Lorentz symmetry , diffeomorphism symmetry gauge symmetry in theory of Physics.Symmetry in classical mechanics deals with invariance under Galillean transformation and summary of space time transformation is given. Method of transformation of force, velocity, energy and momentum is explained.
Prof. Max Tegmark,8.033 Relativity, Massachusetts Institute of Technology: MIT OpenCourseWare),http://ocw.mit.edu (Accessed Sept 16th,2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc
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