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location Buenos Aires, Argentina
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visits member for 3 years
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11h
awarded  Yearling
2d
comment Geometrised Units
The reason is that in geometrized units we usually keep the unit of length as the fundamental one: the meter doesn't change, and so the squared meter doesn't change either.
2d
answered Show the equivalence of two electrostatic energy
2d
answered Where does the partial derivative come from in Sakurai's derivation of the momentum operator?
2d
comment What would be the dynamics of a double-planet system, similar to Earth / Moon, but with both bodies nearly Earth-sized?
The Pluto-Charon system is more or less like this.
Oct
16
revised Energy Dispersion in Young's Double Slit Experiment
Answer was wrong (oops)
Oct
16
revised Energy Dispersion in Young's Double Slit Experiment
added 109 characters in body
Oct
16
comment Energy Dispersion in Young's Double Slit Experiment
@CuriousOne: That's a good point; I guess I too thought the explanation made sense and left it at that. I'll try to fix it tomorrow.
Oct
15
answered Energy Dispersion in Young's Double Slit Experiment
Oct
14
answered 'Mechanical equilibrium does not necessarily mean that the pressure is same at all points of the system' - why?
Oct
14
comment Why doesn't this proof change indices?
@PhilosophicalPhysics: No, but it might be in the future. Also, please make your question a bit clearer. The linked proof is a mess of indices and hard to read; I can't find $\frac{\partial x^\sigma}{\partial y^{\rho '}}$ anywhere. I guess you are probably referring to $J^\sigma_{\rho '}$, but you should add more detail anyway (unless someone more skilled at deciphering indices than I can answer).
Oct
14
comment How did Newton establish his famous third law of motion?
Also I wonder how you managed to prove the second law.
Oct
13
comment Why can't de Broglie waves be electromagnetic in nature?
I don't think this answers the question.
Oct
13
accepted Why can we use just one angular velocity vector to describe the rotation of a whole non-inertial reference frame?
Oct
13
accepted Is it possible for the planets to align?
Oct
13
accepted What is $\hat{p}|x\rangle$?
Oct
13
accepted Can something travel faster than light if it has always been travelling faster than light?
Oct
11
comment Why are nonrelativistic methods used in binary pulsar systems (gravitational waves)?
What makes you think everything can be done with non relativistic methods? Gravitational waves don't exist in the Newtonian theory.
Oct
10
awarded  Popular Question
Oct
8
comment Where in, Einstein’s “On the Electrodynamics of Moving Bodies” (Relativity), is “Time” reasonably shown to exist, or why is it a valid assumption?
The question is valid, but it would probably get good answers and upvotes if it wasn't phrased in such a hostile way, implying that the whole of 20th century physics is wrong because Einstein forgot to check if he had proved time exists.