Raul Simon

5 Questions 89 Answers 0 Followers

Questions related from Raul Simon

How real are the frequencies thrown up by Fourier analysis in acoustics, optics, turbulence, etc.? What about othjer methods of decomposition?

Eddington [1] was one of the few who tried to answer the above question, for the case of the decomposition of white light by a prism; however, his answer is ambiguous. Burgers [2] reportedly (see...

01 January 2018 3,041 9 View

What does an oscillogram show, measure or plot? Are oscillograms still employed in experimental Fluid Mechanics?

When I studied turbulence on my own with the famous book by Hinze, oscillograms were extensively mentioned there, without saying what they measured. All the attention was focussed on "hot-wire...

07 July 2016 6,116 2 View

What is the physical meaning of the nodes (zeros) of the wavefunction of a particle that is confined to an interval of the real line?

As we all know, the wavefunction of such a particle has a certain number n of zeros due to boundary conditions. If at these points the wavefunction is zero, then, since the probability of...

02 February 2015 5,863 29 View

What is the shape of this induced field induced by temporal current variation in a in a coil?

My question is prompted by Problem P. 4263 (May 2010) of the webpage www.komal.hu, which contains physics problems from Hungary (in English).

01 January 2015 1,610 10 View

Can anyone help answer the attached mathematical puzzle?

In the attached paper by Francois Leyvraz, I could not get past eqs.(6-7b) for the following reason: if you differentiate eq.(5) with respect to t, you obtain R(dot) super T times R + R super T...

09 September 2014 6,503 2 View