I was watching a PBS Digital Studios video on YouTube entitled, The Speed of Light is NOT About Light. And, at about 03:37 in that vid, triggered by the comment, "We don't measure magnetic field, we measure its effect," some very elementary physics concepts clicked into place for me; I actually felt a wave of relief wash over me. It was eerily similar to an experience I once had in a graduate statistics class when the prof, during his lecture, reformulated a hypothesis which instantly resolved what had been, for me, a week of confusion and growing desperation.
Look at it this way .... |
In any event, I highly recommend the PBS Digital Studios channels for your consideration.
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