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Quote from: hamdani yusuf on 17/08/2022 14:00:38At least we know that there's still a gap in understanding of refraction.A more accurate statement is:At least we I know that there's still a gap in [my] understanding of refraction.
At least we know that there's still a gap in understanding of refraction.
because you never told us here.
x-ray photons transfer significant momentum, so conservation demands that the forward displacement of the substrate electrons
Quote from: hamdani yusuf on 18/08/2022 05:23:27 because you never told us here.He did, though he was a bit obscure about it.That stuff about a man from Porterhouse referred to this guyhttps://en.wikipedia.org/wiki/James_Clerk_Maxwelland his equations.https://en.wikipedia.org/wiki/Maxwell%27s_equationswhich let you calculate refraction.How come you didn't realise that?Is it because you refuse to learn science?
Why do we still have widely spread incorrect explanations as described in the first videos here?
Once again, we are in "lies we tell to children" territory.
Quote from: hamdani yusuf on 18/08/2022 12:06:12Why do we still have widely spread incorrect explanations as described in the first videos here?Quote from: Bored chemist on 09/08/2022 15:57:37Once again, we are in "lies we tell to children" territory.
Quote from: Bored chemist on 18/08/2022 18:04:35Quote from: hamdani yusuf on 18/08/2022 12:06:12Why do we still have widely spread incorrect explanations as described in the first videos here?Quote from: Bored chemist on 09/08/2022 15:57:37Once again, we are in "lies we tell to children" territory.What's the adult version?
//www.youtube.com/watch?v=JZOn1B8K8mA
https://en.wikipedia.org/wiki/Maxwell%27s_equations
The macroscopic equations define two new auxiliary fields that describe the large-scale behaviour of matter without having to consider atomic scale charges and quantum phenomena like spins. However, their use requires experimentally determined parameters for a phenomenological description of the electromagnetic response of materials.
Or, if you like, the one actually given as an explanation (rather than as an example of "wrong answers") in the first video.Or the pretty similar version given here.
Neither is an explanation. They are mathematical models that generate the observed result.
Maxwell's equations derive v from measurable quantities and hence explain why v varies with photon energy and substrate.
The first video explains refraction as result of superposition of waves with different speeds.
Quote from: alancalverd on 21/08/2022 10:33:58Maxwell's equations derive v from measurable quantities and hence explain why v varies with photon energy and substrate. Do you count them as explanation?
Yes. If you can derive an observable effect from a measurable quantity, you have explained the effect.
Quote from: hamdani yusuf on 20/08/2022 00:26:23The first video explains refraction as result of superposition of waves with different speeds.Where does it say that (about light in glass)?
He makes a statement about combining waves.If you combine waves of different speeds you get other, slower waves.This is true; but irrelevant.At about 8:55 he says that you get a combination of waves in light travelling through matter.He doesn't say how they differ. He doesn't say if they differ in phase or speed.In fact, they have the same speed, but different phase.He could certainly have made it clearer than he did.