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seen Aug 11 at 16:56

To whom it may concern:

Please, leave a certain user alone that used to regularly post on Physics Stack Exchange. Stop whining and crying about it, and act your chronological rather than your social age. The site is doing just fine without him, and new stars will always appear to replace the old ones. The site is meant for users of all levels from highschool to research level, so it's not being downgraded at all--unless you want it to be a physics equivalent of Math Over Flow.

If you find the place too painful and unhealthy then just leave. No one particularly cares about you, anymore than they do about me or anyone else. It's just a place where people can ask and answer physics questions.

OK? Good. May your time be filled with lashings of physics, topped with more physics delights. Have a nice day :)


Jul
6
comment Why is $F=-\nabla V$?
I thought that quote came from Zee
Jul
6
comment Why is $F=-\nabla V$?
Gotta laugh and cry at this: "a vector anything which transforms like a vector does under coordinate transformations." I prefer the definition as a quantity with a direction and magnitude that can be calculated from a set of numbers called its components. And the components transforming under rotations such that its direction and magnitude remains invariant.
May
9
accepted Is there a subtlety to the Lorentz transformations one needs to be aware of?
May
6
awarded  Notable Question
Apr
7
awarded  Altruist
Apr
6
comment Tensor Operators
A little OT: do you think it's worth learning about tensors from Tullio Levi-Civita's classic book? What book would you recommend for beginners?
Apr
4
answered Can we rigorously define force?
Apr
1
awarded  Investor
Mar
31
comment Quantum anharmonic ocscillator $E_0(\lambda)$ curve or table
Thanks to Vladimir and you for this interesting contribution! I'm surprised you didn't import the question to PO with your usual comment: "There's an answer here on PO" ;)
Mar
24
comment Can the Lorentz force expression be derived from Maxwell's equations?
@WetSavannaAnimalakaRodVance I'm just judging Ben as harshly as he judged Steve B's answer( which I believe is clearly correct). The -1 remains although my original reason is not correct: $F_{total} = d\vec p/dt$ is where Ben implicity defines the electric part of the Lorentz force at $v=0$.
Mar
16
awarded  Popular Question
Feb
23
comment Magnetic force between two charged particles?
The magnetic force isn't mutually the same generally.
Feb
23
comment Magnetic force between two charged particles?
The Biot Savart law is for a closed circuit current, and extending this to an isolated moving charge isn't trivial.
Feb
21
awarded  Yearling
Feb
1
comment How much of General relativity follows from the invariance of $c$ and an escape velocity?
@Hypnosifl I'm under the impression that the speed of light is always $c$ in any coordinate system and over large regions for gravity. Perhaps that's where I'm wrong then; maybe you could write an answer stressing this point?
Feb
1
asked How much of General relativity follows from the invariance of $c$ and an escape velocity?
Jan
16
answered What is a tensor?
Jan
13
comment Why does relativistic kinetic energy (KE) equal to the total relativistic energy minus the rest mass energy?
@Max further down the page under examples
Jan
12
asked Is there a physical interpretation of a tensor as a vector with additional qualities?
Jan
8
comment What future technologies does particle physics and string theory promise?
@RonMaimon en.wikipedia.org/wiki/Vector_Analysis was developed around 1888. Where are you getting this idea from that tensor analysis came before it?