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1325
bio website nl.linkedin.com/in/…
location Canada
age 33
visits member for 4 years, 9 months
seen 6 hours ago

Sep
25
comment Modeling a spray painted polyurethane surface reflection
Why not just spray another coat?
Sep
20
answered E and H fields created by fiber optics?
Sep
10
answered How to make the projected image smaller by adding one ore more lenses in front of the built in projector lense?
Aug
24
answered Huygens-Fresnel principle
Aug
17
answered Optical waveguide that can displace a 4D light field
Aug
16
answered Does a fluid's temperature affect the way light passes through it?
Aug
8
answered Reflectance of Titanium as Function of Thin Film Thickness
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?
Jul
12
answered formula for transparency of very thin film of metal
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.
Jun
21
awarded  Civic Duty
Jun
11
answered Make a semi transparent mirror with copper
Jun
8
awarded  Caucus
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
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 ;-)
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"...
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."
May
23
comment Optics of the eye - do we see Fourier transforms?
@RonMaimon, not sure what you mean by that last bit.
May
23
answered Optics of the eye - do we see Fourier transforms?
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.