40,164 reputation
652132
bio website arXiv.org
location Europe
age 49
visits member for 3 years, 9 months
seen 2 mins ago

I'm a theoretical physicist.


25m
comment What's the difference between “numerical methods” & “mathematical analysis” as said by Feynman in his lectures?
I always first try to find concrete links, and Google search is only a second choice. Yes, I believe that active links and references in general make a post better and more accessible to the reader. I completely agree that lmgtfy.com is discouraged. A pure Google search link, on the other hand, can still serve a useful purpose, e.g. if OP uses an abbreviation that is not obvious to the reader, and there is no obvious page where the abbreviation is explained.
3h
comment What are galactic speeds measured against?
Comment to the question (v2): It is best not to ask more than one question per post. The last subquestion (When we say the speed of light is $c$, what is that relative to?) has been asked before, and should be removed.
3h
comment Symplectic notation proof?
Correction to the last word in the answer (v1): Machanics should be Mechanics.
5h
comment Why don't we have a theory of everything?
Possible duplicates: physics.stackexchange.com/q/387/2451 and links therein.
11h
comment Background needed to understand wireless power transfer at 30GHz
Would Electrical Engineering be a better home for this question?
11h
comment Can string theory get rid of randomness in quantum processes?
Do you know that string theory is a quantum theory?
12h
comment Avalance diode -looking symbols with two triangles in the case of backpressure pump?
Tags are a separate issue.
22h
comment Why drops form spheres?
Isoperimetric inequality in 3D.
1d
comment Norm of summation of vectors
Comments to the question (v1): Firstly, the question seems to confuse vectors and covectors. Secondly, $g^{vv}\partial_v\partial_v$ is not a norm.
1d
comment Can Einstein's 'Theory of General Relativity' exist in Harmony with 'Quantum Mechanics'?
Related: physics.stackexchange.com/q/387/2451 and links therein.
1d
comment What is the most compelling evidence of General Relativity in the presence of matter and energy?
Related: physics.stackexchange.com/q/10484/2451 and links therein.
1d
comment Will Ice Cubes Form Quicker when Made from Hot Water or Cold Water?
Possible duplicates: physics.stackexchange.com/q/32989/2451 and links therein.
1d
comment Gravitation - hole to center of Earth
Related: physics.stackexchange.com/q/7346/2451 and links therein.
1d
comment Symbols of derivatives
Related: physics.stackexchange.com/q/65724/2451 , physics.stackexchange.com/q/36150/2451 , physics.stackexchange.com/q/9122/2451 and links therein.
1d
comment How can ants carry items much heavier than themselves?
Possible duplicates: physics.stackexchange.com/q/10793/2451 and links therein.
1d
comment Why can't dark matter be baryonic?
Possible duplicates: physics.stackexchange.com/q/1008/2451 and links therein.
1d
comment Avalance diode -looking symbols with two triangles in the case of backpressure pump?
Would Electrical Engineering be a better home for this question, e.g. because of obvious analogue between hydrodynamics and electronic circuits?
1d
comment Detailed balance condition for coupled Langevin equation
Comment to the question (v1): Consider adding more references in order to receive useful and focused answers.
1d
comment Why does the group velocity of 2D plasmon diverge at small wave number?
Comment to the question (v1): Consider adding references in order to receive useful and focused answers.
1d
comment Confusion with anti-symmetric tensors!
Comment to the question (v4): There is in general no reason why the anticommutator $\{A,B\}_+$ of two $n\times n$ matrices $A$ and $B$ should only have a trace-part $\frac{2}{n}{\rm tr}(AB)~{\bf 1}_{n\times n}$ and no traceless symmetric part. (There is a corresponding representation-theoretic formulation in terms of fusion rules.)