Recent content by Athiril

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    Graduate Can a thick pinhole create a spot smaller than the diffraction limit?

    Didn't seem to have much luck on the actual reasoning with this elsewhere. A regular pinhole projects an image, and has a diffraction limit for the image, that is the size of the airy disk. What if we take a thick pinhole, no a pinhole in metal foil for example, but a long solid cylinder...
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    Mixing household bleach with urine

    Sounds like chlorine gas.
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    Graduate What is the spectral response of Brilliant Blue FCF?

    This chemical here - http://en.wikipedia.org/wiki/Brilliant_Blue_FCFCan anyone tell me it's spectral response? Specifically I was interested if this dye aborbs energy in the 700nm to 1600nm range of light.I know it says it has a cut-off for 628nm, but that is for the visible spectrum, many...
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    Graduate Can Time Dilation Be Calculated for a Hypothetical Relativistic Trip?

    Thats funny I swore I posted in this thread, with an offer of writing some simple code.