meta user
network profile
| bio | website | nl.linkedin.com/in/… |
|---|---|---|
| location | Netherlands | |
| age | 31 | |
| visits | member for | 2 years, 6 months |
| seen | May 12 at 15:10 | |
| stats | profile views | 234 |
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Aug 24 |
answered | Huygens-Fresnel principle |
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Aug 17 |
answered | Optical waveguide that can displace a 4D light field |
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Aug 16 |
answered | Does a fluid's temperature affect the way light passes through it? |
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Aug 8 |
answered | Reflectance of Titanium as Function of Thin Film Thickness |
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Aug 8 |
comment |
A problem concerning the change of temperature and spectrum of a filament Could be a crappy digital camera that does not reproduce colors properly? Or the color profile got changed somehow during editing? |
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Jul 12 |
answered | formula for transparency of very thin film of metal |
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Jul 11 |
comment |
formula for transparency of very thin film of metal For a given wavelength, you need the complex permittivity or complex refractive index of aluminum and the refractive indices of the materials on either side of the aluminum film. (See refractiveindex.info). I'll post a more extensive explanation if I have time tomorrow and nobody else has yet. |
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Jun 21 |
awarded | Civic Duty |
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Jun 11 |
answered | Make a semi transparent mirror with copper |
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Jun 8 |
awarded | Caucus |
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May 25 |
comment |
What is a “Center Of Mass” issue of a Gorillapod? I wrote a little essay about that a few years ago: ptomato.wordpress.com/2010/10/08/hurdles-even-here |
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May 25 |
comment |
What is a “Center Of Mass” issue of a Gorillapod? @AnishaKaul: I'm sorry, I think we got off on the wrong foot here. I'm not trying to pick on you and I think your question is good. I'm not blaming you, because most people don't realize it, but that attitude comes across as aggressively insulting, at least to me (I don't know if I can speak for others.) I was trying to point that out in a light-hearted way, but I failed. Please don't let me discourage you from asking other questions, because we do enjoy explaining physics to non-physicists and believe it or not, we do try to avoid formulas when we are doing so ;-) |
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May 24 |
comment |
What is a “Center Of Mass” issue of a Gorillapod? If you want physicists to help you, then perhaps you should think twice before calling their bread-and-butter "terrifying"... |
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May 23 |
comment |
Optics of the eye - do we see Fourier transforms? I'd say "Given that a thin lens computes monochromatic FT, every thin lens, including our eyes, is 'computing' an infinite number of FT all the time. Just usually not the FT of anything useful and certainly not on the retina." |
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May 23 |
comment |
Optics of the eye - do we see Fourier transforms? @RonMaimon, not sure what you mean by that last bit. |
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May 23 |
answered | Optics of the eye - do we see Fourier transforms? |
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May 23 |
comment |
Optics of the eye - do we see Fourier transforms? @RonMaimon, I never meant to imply that the lens image is a Fourier transform. It's not my statement and I agree with you that it's wrong. I'll write an answer explaining what I mean. |
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May 23 |
comment |
Optics of the eye - do we see Fourier transforms? @RonMaimon: what? I think you're confusing classical optics and geometrical optics. Classical optics, the 'opposite' of quantum optics, is optics that can be explained without using photons. Specifically, to explain Fourier-transforming lenses, you need paraxial wave optics, which is firmly in the classical domain. |
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May 18 |
comment |
High school double lens optics question Great example of how a homework question should be asked. The way your translated question is worded, one could also interpret it to mean that the convex lens is always at 65 cm in both cases. Unfortunately this also leads to 2 unknowns in 1 equation. |
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May 11 |
answered | Effect of a wavefront deformation on the far-field diffraction pattern of a TEM00 |
