864 reputation
217
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age 24
visits member for 2 years, 7 months
seen Aug 23 at 17:41

NTS


Apr
26
asked Quantum commutator
Apr
5
comment Why does the index of refraction change the direction of light?
Thank you very much, that analogy ir really good.
Apr
5
accepted Why does the index of refraction change the direction of light?
Apr
4
comment Why does the index of refraction change the direction of light?
Thanks I got it. that picture opened my eyes (even when I have seen that picture like a trillion times)
Apr
4
comment Why does the index of refraction change the direction of light?
@Gugg Isn't it the same? I guess that when studying the refraction of a single-wavelenght wave, you will get that the angle depends on the frequency, and there fore the multiwavelength light is dispersed.
Apr
4
comment Is there a compound denser than the densest element?
BTW, how could find prices for things like Californium, Berkelium or Curium?
Apr
4
asked Why does the index of refraction change the direction of light?
Mar
29
comment cgs Gauss' system of units
@ChrisWhite Neither did I, my teacher uses it for dipole and he writes it like that in his notes (they're computer written so it's not bad calligraphy). All optics book I've seen use just $p$.
Mar
29
comment cgs Gauss' system of units
@LubošMotl Thanks, that's both relieving and it sucks. I will try to get used to cgs Gauss' system as I am seeing it is actually used.
Mar
29
comment cgs Gauss' system of units
@MarkEichenlaub Ok, generally, I understand where both systems come from, but I still have not clear how to change between systems. The only thing I could do is to go to the beginning and start deriving in both systems to see the differences.
Mar
29
revised cgs Gauss' system of units
added 345 characters in body
Mar
29
asked cgs Gauss' system of units
Mar
25
comment Why is $\vec j\cdot \vec e$ the joule dissipation?
And so what is its physical interpretation microscopically. What's that product at those scales, how must I see that?
Mar
25
answered So gravity turns things round
Mar
25
asked Why is $\vec j\cdot \vec e$ the joule dissipation?
Mar
21
accepted Fast question about Lagrangian
Mar
19
comment Monochromatic wave
Ok, thank you for the answer.
Mar
19
accepted Monochromatic wave
Mar
18
asked Monochromatic wave
Mar
18
accepted Circular polarisation