In the wash-up of everything Einstein had a great experiment that measured a angular momentum factor out by a factor of 2. It was ten years before spin was discovered and electrons inhabiting a 720 degree rotation universe and being twice as magnetic as their angular moment should allow them in a 360 degree world.
This experiment has profound effects for me personally as so few people understand it. It is also profoundly simple to demonstrate in a school setting. I feel somewhat relieved that they use a resonant magnetic field
This was a bit of a fragmented podcasts, interrupted by spider catching (x2) a headache, a trip to walk with someone, and finally not all the note pages printed out. It did however mean that I eased into the topic. It may be hard to listen to.
MP4 recording MP3 recording
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