Recent content by Euclid

Thanks cristo for the help. I have definitely thought about this. But my advisor may not be very happy to hear that I don't enjoy his research anymore, so I can't and shouldn't talk to him. As for the EE here, yes, I probably should talk to someone. But I am afraid of word getting back to...

I agree, but I wish you hadn't used the phrase "cut out for". It gives me a feeling of failure. In fact, the switch to engineering is motivated partly because, while I want to keep the door open for academia, I really think at the end of the day I probably want to work in the business world...

Is it normal to be bored of my research at the second year stage of a physics PhD? Or is this a sign that I should be looking elsewhere? I currently find my work (in theoretical physics) too much removed from real-world applications, and I have been thinking of making a switch to electrical...

Actually the OP kind of describes my typical day. But I am just a lowly grad student. I think as the responsibilities become greater, you do less and less research and more administrative stuff like writing grants/books, advising students, participating against your will in some committee...

How about for electrical engineering? I am currently in a physics grad program far far away from home and I am considering moving back to Buffalo (my home town) for engineering phd. As others have mentioned, UB is kind of low on the rankings. To what extent do the rankings reflect reality in...

You would make like you do for angular momentum. Since you can't take square roots of operator, you have to study the square of the quantity you are interested in. So in your case, you would have to settle for \sqrt{ \langle p^3\rangle}, but you would have to put absolute values somewhere...

The rod would bend. What you are describing is impossible.

What are the general boundary conditions for nonviscous, incompressible fluid flow? I am trying to find the velocity of fluid at the surface of a sphere with the incident fluid having uniform velocity. I am surprised to find in the solution that the radial velocity at the surface does not...

Entropy does decrease for short periods of time in some small systems.

Yeah, of course! If there is no field, and the object is polarized... it's not a linear material.

I don't get it. The current necessarily affects the material (but we do assume that the material does not affect the current). Also, the field from the wire is easy to determine, but the field due to the material is not straightforward (I don't think) since that field is due to unknown...

Unfortunately, I cannot get my hands on this book. Maybe google has something for me on the dAlembertian... I really don't care about uniqueness of potentials. After all, potentials are only unique up to some transformations. What I care about is uniqueness of the field. So in the...

To both posters: huh? I am sorry I don't understand. I am looking for conditions under which solutions to maxwells equations are unique. I don't see how your post relates to this. The reason I ask is because I recently solved a (magnetostatics) problem in which I was able to guess a...

I am wondering if anyone knows of any conditions for uniqueness of solutions to maxwells equations. For electrostatics, I have seen uniqueness formulated in terms of the potential. I am asking here how this result generalizes to the non-electrostatic case.

They do, but it's vague. And they provide sample problems, but they are really pathetic photocopies of photocopies of photocopies of problems that were used in the 40s (some are hand written). I think they try to make the exam extra hard by handing out useless study guides to confuse you. I...