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seen Jun 13 '12 at 5:15

May
23
answered Time Reversal Invariance in Quantum Mechanics
May
22
comment How to get Planck length
Just based on general considerations, the transition doesn't even have to be sharp I guess (it will be sharp only if some symmetry is spontaneously broken and I'm ignorant of whether or not that must be the case for a renormalizable low-energy theory to appear). So I agree with you, nothing is so special about Planck's length before considering a specific consistent QG.
May
22
answered How to get Planck length
May
22
answered From knowing just the change in kinetic energy, can we find the friction force and engine power?
May
22
awarded  Teacher
May
22
answered Residual Resistivity in alloys and metals
May
22
answered Is the gravity we feel in our everyday life mainly curvature of the time coordinate?
May
20
answered Slow thermal equilibrium
May
20
comment Why is matter drawn into a black hole condensed into a single point within the singularity?
Argus, in a classical context, the outside observer is of no significance; in a quantum context, on the other hand, I'm of no significance, because I'm very ignorant about quantum backholes. Sorry!
May
20
answered Why is matter drawn into a black hole condensed into a single point within the singularity?
May
20
awarded  Commentator
May
19
awarded  Student
May
19
asked Conformal fields on compactified manifolds? An apparent paradox!