Recent content by Raparicio

In Quantum Field Theory and in particles physics, there's a postulate that is SIMMETRY. Why exists this postulate? Best reggards.

Very clear! Thanks!

Dear Friends, I have some questions about the efects of sink, sources and vortices. Both sink and source in fluids mechanics, are a region near a point that attracts or repels, for example, a particle. In the case of a vortice, in adition, a particle will be atract and approach towards the...

I don't knew that was a mistery... but now understand that my question is not only mine. Thanks for all.

I've tried both, but there's no enought information. Thanks.

Does anybody knows a good reference or book that explains the "fine structure constant"?

Thanks OlderDan for your time and explanation. Has been very clear for me. raparicio.

are light waves, plane waves? I've seen the example that always shows a electro-magnetic wave, with one 90º in diference to the other. But, really is this way?

Thanks thks :smile:

any recomendation?

Sound waves moves at the line of movement, and light are perpendicular... any more?

Dear friends, What are de principal differences between sound and light waves?

... One is about Stoke's equation, and the other is much complicated, but I don't know if, for an object into fluid, there are this two or only Stokes's one. Best reggards (interesting picture, your avatar!)

Dear FredGarvin, I've read it referent to a boat in surface. My question is that if this could happen, i.e. a submarine, or not (one force due to friction and another due to wave drag) or if two are the same. best reggards.

Dear friends, I'd like to know if the meaning of "wave drag" is the same that the resistance of a fluid. best reggards. r. aparicio.