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0:00:00 Start
0:02:00 Spacetime diagrams
0:05:10 Warm up puzzle
0:08:45 Solution
0:13:42 Version 2 of Puzzle
0:15:35 Doppler Effect
0:18:34 Note about ways
0:22:45 2-Way Doppler
0:27:00 Flip of 2-Way
0:30:22 2-Way Symmetric
0:31:40 1-Way Doppler
0:34:17 1-Way Derive
0:41:41 Waves from stationary
0:46:51 Medium
0:51:06 Lorentz Factor
0:57:36 "Fixed" Doppler
0:59:35 Planks Relation
1:00:49 Mass disintegration
1:03:34 E = mc^2
1:14:42 Einstein himself