Lecture Topics
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Lecture Video: Symmetry, Infinite Number of Coupled Oscillators
The mathematical description of “symmetry” is introduced. Prof. Lee shows that the concept of symmetry can be used to solve infinite numbers of coupled oscillators and that the sine waves we see in daily life are coming from translation symmetry.
Lecture Notes
Typed Notes for Lecture 7 (PDF - 1.1MB)
Handwritten Notes for Lecture 7 (PDF - 1.9MB)
Textbook Reading
Chapter 4: Symmetries (PDF - 1.3MB)
Chapter 5: Waves (PDF - 1.4MB) (through section 5.2)
Problem Set
Problem Solving Help Video*
In-class Demonstrations
| SEE IT IN THE LECTURE |
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| Bell Labs Wave Machine |
| Vibrating Spring (Hand Driven) |
* Note: These Problem Solving Help video was originally produced as part of a physics course that is no longer available on OCW.
