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All lecture recordings are available at: https://mediaspace.illinois.edu/channel/PHYSICS+225+SPRING+2022/242011082.
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Discussion Units

Unit Topic Discussion Answers Lectures Videos
1 (Jan 16-22) Special Relativity: Do You c What I c? Solutions 1 Lecture 1 Video 1
2 (Jan 23-29) The Lorentz Transformation Solutions 2 Lecture 2 Video 2
3 (Jan 30-Feb 5) The Interval, Causality, and Proper Time Solutions 3 Lecture 3 Video 3
4 (Feb 6-12) 4-vectors, Tilted Axes, and the Expanding Universe Solutions 4 Lecture 4 Video 4
5 (Feb 13-19) E = mc2 Solutions 5 Lecture 5 Video 5
6 (Feb 20-26) Conservation, Conversion, and Nuclear Power Solutions 6 Lecture 6 Video 6
7 (Feb 27-Mar 5) The 4-vectors of dynamics Solutions 7 Lecture 7 Video 7
8 (Mar 6-12) Differential Calculus in 3D Solutions 8 no lecture due to in-class midterm no video
9 (Mar 20-26) Vector Fields and Curvilinear Coordinates Solutions 9 Lecture 9 Video 9
10 (Mar 27-Apr 2) The Line Element and Grad, Div, Curl Solutions 10 Lecture 10 Video 10
11 (Apr 3-9) Multi-dimensional Integration I Solutions 11 Lecture 11 Video 11
12 (Apr 10-16) Multi-dimensional Integration II and Maxwell's Equations Solutions 12 Lecture 12 Video 12
13 (Apr 17-23 ) The Zen of i Solutions 13 Lecture 13 Video 13
14 (Apr 24-30) Pitfalls & Mastery Solutions 14 Lecture 14 (finals wrap-up) Video 14