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Dec
23
comment Which kinds of Physics laws do and don't comply with the principle of relativity?
it's not true that they either exhibit Galilean or Lorentzian invariance, they all obey the latter. Galilean invariance is an approximation for v<<c
Dec
23
comment The Four-Clock Special Relativity Conundrum
@TerryBollinger the Lorentz transformations depend on the sign of $v$ which means simultaneous events in the lab frame tranform differently to frames A and B. Hence you can't assume the lagging clocks must have the same time because of the symmetry of the problem.
Dec
20
comment Are the principles of space-time homogeneity and Isotropy independent of one another?
If you can't have isotropy every where without homogeneity, then doesn't this imply they're not entirely independent of one another?
Dec
20
accepted Calculate relativistic boost to COM frame from two arbitary velocities?
Dec
20
asked Are the principles of space-time homogeneity and Isotropy independent of one another?
Nov
29
comment Recent Higgs boson observation and credibility of superstring theories
@Dilaton how are you qualified to say which physicists are right and which are wrong? I'm under the impression that Kane expected SUSY to show up in the LEP - it didn't. So the models were modified and so SUSY was expected to show up in the LHC by now. It hasn't, and on we go...
Nov
28
comment deriving a Lorentz transfomation for velocity vector components
You've divided by $cdt'$ rather than $dt'$
Nov
27
awarded  Caucus
Nov
18
comment What equation describes the electrostatic potential in these circumstances?
$j = \sigma E$ ?
Nov
14
comment Did Einstein prove $E=mc^2$ correctly?
nonsense, the paper is not really easy and clear, hence the controversy.
Nov
14
comment Did Einstein prove $E=mc^2$ correctly?
-1 this doesn't answer the question.
Nov
11
comment Relativistic momentum
Why should the Newtonian momentum be multiplied by some function of the velocity?
Oct
30
comment Can the Euler-Lagrange equations be derived from an infinitesimal Principle of Least Action?
looks interesting
Oct
24
comment Minkowski diagram and length contraction
what did you use to draw the graphs?
Oct
23
comment What is meant by potential energy for a particle in a field?
yes thanks. I agree with you completely.
Oct
19
comment What is meant by potential energy for a particle in a field?
When textbooks suggest that a particle in a gravitational field has a potential energy mgh, how would you express it?
Oct
18
comment What is meant by potential energy for a particle in a field?
yes, I would tend to agree with your view and summarise it as work-done on system + potential energy of system + kinetic energy of interacting particles = const. But does the idea of a point in the system having a potential make sense then?
Oct
17
asked Can the Euler-Lagrange equations be derived from an infinitesimal Principle of Least Action?
Oct
17
asked What is meant by potential energy for a particle in a field?
Oct
4
comment Energy in electric field
@CrazyBuddy do you think you could cut down on your over use of the exclamations mark?!!!!!!!