The h Bar

2:10 AM

Can anybody try understand me Maxwell's equations (as i'm beginner in electro magnetism ) so i can understand how ME could not satisfy principles of relativity

vzn

2:57 AM

@user2723984 hi, there are some new fluid dynamics models + experiments, check em out :)

dmckee

3:56 AM

@kartikc.p Hmmm ... well the first thing to be clear on is that Maxwell's equations do satisfy the principle of relativity as we currently understand it (i.e Einstein's way). They fail to satisfy the principle as it was understood in the nineteenth century (i.e. Galileo's way).

But putting that to the test is not trivial. Just how advanced are you in your studies? Can you show that Newtonian physics satisfies Galilean relativity?

dmckee

4:09 AM

As an aside, those nineteenth century physicists had enormous competence in the math and dealt with very complex problems in perturbation theory and the like.

@tttt The classical reason for the "breadth and depth" approach in US higher education is that you are being educated to be a community leader not a specialist.

In that understanding you need broad exposure to engage with people in all walks of life and deal with ideas in policy and community with some sense of what to expect from various approaches.

Of course, one could argue that the expectation that college-education implies community-leader is a bit outdated, and I wouldn't disagree; but I remain a fan of the approach because of what it can do for the student as a whole person.

You have a long working life in front of you in which to achieve deep technical mastery; it will likely be a quite a while before you next get a change to really dig into the broader meat of human intellectual accomplishment.

Secret

5:32 AM

9 hours ago, by ACuriousMind

But I do think "closed timelike curve" is a good formalization of time travel. It definitely means an observer can have an event both lying in his own subjective past and his own subjective future.

It still intrigues me that GR actually provide no mechanism to produce CTCs from otherwise flat spacetime

shiva

6:36 AM

Hi friends, If anyone are aware about single pole cole cole equation model, I am curious to know about the permittivity at infinite frequency. Here's the link

Cole–Cole equation

The Cole–Cole equation is a relaxation model that is often used to describe dielectric relaxation in polymers. It is given by the equation ε ∗ ( ω ) = ε ∞ + ε s − ε ∞ ...

GodotMisogi

@Blue I thought at least ECE students would have to learn SR. Although you're implicitly learning it while studying Maxwell's equations for electromagnetism :)

@SirCumference AFAIR, at maximum you learn how to solve the Schrödinger equation in one dimension in an infinite potential well in first-year engineering colleges in India (without understanding the axiomatic structure or perspective, just deriving the results). It's mostly similar to the material studied in Serway and Jewett/Resnick Halliday Krane

kartik c.p

7:27 AM

@dmckee I just wanted you to explain ME equations.

I easy way

@dmckee in easy way

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