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Jul
8
comment Why do we still need to think of gravity as a force?
@SachinShekhar the source of gravity is mass and its effect on space-time
Jul
8
answered Why do we still need to think of gravity as a force?
Jul
8
comment Explanation for $E~$ not falling off at $1/r^2$ for infinite line and sheet charges?
I don't understand your answer at all, but thanks for the effort.
Apr
28
awarded  Popular Question
Apr
6
comment What's the purpose of the arbitary additive constants in Einstein's Inertia of Energy Paper?
+1 OK, that's much better, which is what John McVirgo says in the comments of the question.
Apr
5
comment What's the purpose of the arbitary additive constants in Einstein's Inertia of Energy Paper?
Ok then, so why didn't Einstein also account for different energy scales, such as temperature, having different multiplicative factors?
Apr
5
comment What's the purpose of the arbitary additive constants in Einstein's Inertia of Energy Paper?
-1 he didn't bother with different frames using different standards of measurements in his 1905 paper, so it's safe to assume he didn't do the same here, otherwise he would have said so.
Mar
16
accepted Must the Lagrangian always be known for the Euler-Lagrange equations to be of any use?
Mar
16
asked Must the Lagrangian always be known for the Euler-Lagrange equations to be of any use?
Mar
12
comment What are hidden variables exactly?
@user21847 our ignorance and inability to measure these variables hides them from us.
Mar
12
answered What are hidden variables exactly?
Mar
6
comment What was meant by the 'ponderomotive force' as understood by Minkowski?
If you read the question, I do say Minkowski mentions it in 1907.
Feb
3
comment How can the speed of light be a dimensionless constant?
You should be more explicit in your conclusion then: c is not dimensionless and so Schultz is wrong.
Jan
16
answered No magnetic field from a static charge - Is there a simple physical argument to show why?
Dec
26
comment Which kinds of Physics laws do and don't comply with the principle of relativity?
Yes, I can see that you're right now.
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?