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photon entropy by
goombaj@gmail.com
Is the photon entropy independent of its frequency? does it remain
constant? I am trying to work out the photon gas entropy using such a
postulate. Is this well justified?...
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WKB approximation in cylindrical coordinates by
vivishek
In the context of the solution of Schrodinger equation, is there any
modified form of the WKB approximation which can be applied for the
Schrodinger equation in cylindrical...
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Q: Black Hole Horizon by
mark_horn@sbcglobal.net
25-AUG-2007
Hi all -
Assuming, for the sake of simplicity, a non-rotating BH, it's been
conjectured that for an external observer the "image" of any matter
falling through...
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August 27th 07
by Bran
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The Work Envelope Problem by
Doug Goncz[_2_]
In a weightless environment, a machine tool slide can be designed to move a
distance equal to its own length, facilitating machine tool
self-reproduction (MTSR). However,...
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Where can we bend the rules of QM? by
Gen Zhang
This is a plea for the experts to refine my understand:
As I understand it, the current state-of-the-art on reconstruction of
QM from postulates, in the vein of von Neumann,...
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Books on the nature of time? by
Robert[_2_]
I'd like to learn about the nature of time, about its ontological reality
(if, indeed, time has any reality at all.) Ideally, I'd like to read a
book or article by a...
( 1 2)
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PPN Question by
ajiko
When using the PPN in solar system tests or in cosmological expansion
analysis, are off-diagonal elements important?
Does anyone know what categories of analysis use...
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Quantization of Action Question by
Jay R. Yablon
Insofar as I understand, the action S = $d^4x L, where L is the
Lagrangian density, is always a multiple of 1/2 unit of the reduced
Planck's constant ($ denotes an...
( 1 2)
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Measurements in GR by
Gen Zhang
As is often the case, I've realised something obvious, but don't know
where to head next -- so naturally I'm asking on
sci.physics.research... Essentially, I'm wondering...
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Blue Sky by
Steven E. Landsburg
I hope this question isn't too elementary for this group.
I (more or less) understand why the sky is blue (Rayleigh scattering
because incoming sunlight turns air molecules...
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Feynman argument? by
pellis@london.edu
Can anyone point me to some background for what looks like a bit of
sleight-of-hand in Feynman's half of the 1968 Dirac Lectures
(published together with Weinberg's lecture,...
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inquiry by
mike
OK, Basically, I am interested in studying quantum phenomena,
specifically in a method that mimics the development of the field
through history.
I want to know where I can...
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detuning by
janiefar@gmail.com
I've been reading about spectroscopy (specifically Ramsey
spectroscopy) and they always have detuning so that the laser
frequency is different from the atomic frequency. Why...
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Quarks at the Ends of Strings. by
arivero@unizar.es
I am fascinated with the old Marcus-Sagnotti "Group Theory from
Quarks at the Ends of Strings" (SPIRES http://www.slac.stanford.edu/spires/find/hep/www?j=PHLTA,B188,58
)....
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