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Nov
15
accepted Notation of plane waves
Nov
13
revised Is it possible to make glasses that make everything brighter, but do not magnify or focus?
expanded answer greatly
Nov
13
comment Is it possible to make glasses that make everything brighter, but do not magnify or focus?
I'm skeptical of this solution being able to increase the brightness without distorting the image. Can you elaborate?
Nov
13
comment Is it possible to make glasses that make everything brighter, but do not magnify or focus?
But... you can never use a larger aperture to make the image brighter than it already would be if you looked at it without 1x binoculars. This is why everybody keeps asking where the extra photons come from.
Nov
12
comment Is it possible to blur an image in such way that a person with sight problems could see it sharp?
Unfortunately, it's not just more difficult, it's impossible. The information you need is the phase. (Which is equivalent to @Mark Eichenlaub's mention of the 3-D monitor that "can control the direction of the light coming off it" -- even though I have no idea what a 3-D monitor does ;-)
Nov
12
comment Is it possible to make glasses that make everything brighter, but do not magnify or focus?
@MSalters, that would be focusing. Perhaps I need to expand my answer a little, I'll get around to it tomorrow ;-)
Nov
12
comment Is it possible to make glasses that make everything brighter, but do not magnify or focus?
@MSalters, But there's no magnification, so the extra light hits your retina elsewhere (or even doesn't enter your pupil), giving you a wider view but at the same brightness.
Nov
12
awarded  Commentator
Nov
12
comment Is it possible to make glasses that make everything brighter, but do not magnify or focus?
Even with a double lens, the question still holds - where does the extra light come from?
Nov
12
answered Is it possible to make glasses that make everything brighter, but do not magnify or focus?
Nov
11
comment Why can you have shiny black objects?
@Jonathan, an object can still be "black" (absorb completely in the visible spectrum) and reflect light.
Nov
10
answered Why can you have shiny black objects?
Nov
10
answered How can we describe the polarization (of light) coming from an arbitrary angle?
Nov
10
comment Notation of plane waves
@Tobias Kienzler, Agreed. But the E and B-fields can still be gotten from the real and imaginary parts of $\tilde{\mathbf{E}}_0$, though.
Nov
10
asked Notation of plane waves
Nov
10
answered 4th equation of motion
Nov
9
awarded  Beta
Nov
9
answered What software programs are used to draw physics diagrams, and what are their relative merits?
Nov
9
answered How do I compute the eigenfunctions of the Fourier Transform?
Nov
9
comment What software programs are used to draw physics diagrams, and what are their relative merits?
Might be a good community wiki, since there's no well-defined correct answer?