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Re: Voting on LIGHT (was energy with Q)



On Fri, 16 Nov 2001, Jack Uretsky wrote:
There is no "in principle" limit on the length of time that the
aperture (of unspecified size) may be open. The "gedanken" experiment I
have given you is essentially one that was discussed by Feynman and
recently (in the past couple of years) implemented with electrons instead
of photons.

If this is the "time" version, then the "space" version of the experiment
is a simple pinhole. For monochromatic light, just plot the amount of
light passing through the pinhole, versus pinhole size. If there is a
big knee in the graph, you've proved that photons have a finite size.


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