Comments by "Gilad Barlev" (@GSBarlev) on "" video.

  1. My undergrad taught (teaches?) QM before E&M, so my Physics 240 professor straightaway went, "except we all know that magnets are actually spinny bois" and everyone just nodded along. Except me, who was taking the course as a freshman before taking Quantum in the second semester. So I remember fixating like Angela did and trying to work out the limit as r went to zero without QM like Griffiths' collaborator is doing. That class was a ball and a half, and I don't think I ever felt more meaningfully challenged, before or since, but damn if I wasn't a problem student.
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  2. That's certainly an interesting spin on the issue.
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  3. ​​ @Katieushka They said barely understand. Big difference. I'd argue that to grok what she's saying, you'd have to take a few semesters of undergraduate physics, so the fact that a non- or semi-technical audience can get the gist while also feeling entertained is a compliment.
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  4.  @idontwantahandlethough  Funny—the only places I ever remember hearing that the centrifugal force doesn't exist is pop culture and maybe high school physics. By the time I was learning classical mechanics, we were all about doing the coordinate transformations to derive centrifugal and coriolis forces. Now, was that due to me making the jump to college / major physics? Definitely Maybe. But I'd like to think it was because I graduated high school in 2005, right around the time that xkcd came out.
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  5. Worse—while they do no work, they divert the paths of charged particles. So really, they're the ultimate trolls.
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  6. Griffiths is such a hit-or-miss author for undergrad physics. His Quantum book is, generously, trash, but his Elementary Particles book is great. I remember E&M being somewhere in between, with some members of the faculty seriously considering swapping it out with Jackson.
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  7. ​ @Sletty73 Correct. Griffiths' textbook is called "Introduction to Electrodynamics." But the only way I know that is that I looked it up just now—NOBODY knows these textbooks by their title, just their author(s).
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  8. Griffiths' snark is truly epic. He also seems to have some sort of vendetta against Niels Bohr—as a freshman undergrad reading his Quantum and Elementary Particles book, my takeaway was that Bohr was a massive idiot whose main contribution to modern physics was to be consistently wrong. It took me until Senior Lab to learn otherwise.
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