Talk:Wave
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I think λ should be explained with a link to wavelength. Also I is not explained. The article should start with a definition, not with period and frequency.
The angular frequency formula is correct. --AxelBoldt
--- Reorganized concentrating on simpler topics first. Come on... don't formula look better in another font:
like this?
--sodium
Hmm. Sorry, didn't check this page before, I just changed it back. With my browser/settings, formulae look much better like this:
- v = ω / k = λf ,
than like this:
v = ω / k = λf .
But that's just for me. Feel free to change it back. -- DrBob
Examples of waves Sea-waves, which are perturbations that propagate through water (see also surfing and tsunami). Sound - a mechanical wave that propagates through air, liquid or solids, and is of a frequency detected by the auditory system. Similar are seismic waves in earthquakes, of which there are the S, P and L kinds. Light, radio waves, x-rays, etc. make up electromagnetic radiation. Propagating here is
'a disturbance of the electromagnetic field. '
does it want to mean that before "pass a light wave" there is a quiet magnetic field?
- I agree that is was oddly formulated. I changed it. - Patrick 15:23 Feb 18, 2003 (UTC)
Perfect, but now i think there is another little incongruence. The first paragraph say about waves: "Waves have a medium through which they travel and can transfer energy from one place to another without any of the particles of the medium being displaced permanently". Is not correct to say that for all the kind of waves and to say a few lines later that electromanetic waves don't need a medium...
PS: I would correct it myself but my englis is very bad. (Sorry by the lot of mistakes that is sure I have wroten in this short comment).
- I was not quite happy with this incongruence either; I have put the exception higher up. May be you can improve it further. Do not worry too much about the English, that can be corrected. - Patrick 22:54 Feb 18, 2003 (UTC)
It's confusing that "x" is used in the picture to refer to the amplitude. There is an equation down below where "y" is used. --dave
- I've changed the image. If it is generally agreed that this new one is better, someone should go to the image discription page and delete the old one. Theresa knott 23:32 Apr 6, 2003 (UTC)
I am not happy with the sentence from the introduction where it says that particles oscilate around a fixed point. This is only true under "stationary" conditions, as every surfer knows. Which terminology can be used to describe phenomena like surf?
i am not happy with this recent addition, waves in ponds are circular: Waveguy 03:27, 28 Oct 2003 (UTC)
Ripples on the surface of a pond are actually a combination of transverse and longitudinal waves; therefore, the points on the surface follow elliptical paths.
I'm sorry. But I think that it is the 'wavefront' of the 'pond waves' (in case the initial disturbance is localized e.g. by throwing a stone in the pond)that is circular and not the nature of 'wave'. Any suggestions?Rahuljp
- Your right Rahuljp. The ripple spread out in a circular pattern, but a point on the suface does not necessarily follow a sinusiodial path. Perhaps a diagram would make the matter clearer? (I'll get to work on one right away)Theresa knott 16:54, 6 Nov 2003 (UTC)
Thank you Theresa knott. But this does suggest that I did not use the correct language. Can you do it? Rahuljp
- Personally I don't think I can do any better than you. IMO it's practically impossible to convey abstract scientific ideas with words. Pictures are much better. Theresa knott 17:13, 6 Nov 2003 (UTC)
- Good job, Theresa. Rahuljp Thanks.I'm glad you liked it theresa knott 11:40, 14 Nov 2003 (UTC)
I'm confused about ripples. Is it possible to provide an explanation of how a wave front moves? That is, consider the first wave front moving across a pond. At some moment a particle on the surface of the pond will be higher than it was previously. On the face of it, that is paradoxical. It is especially confusing since the water itself does not move with the wavefront--it's not like snow being pushed along by a snowplow. What is the explanation for how a bulge shape can move along the surface of the water? -- RussAbbott
Requestion peer review at wave vector. I just sort of made up this definition basd on what I've seen in papers and on some math website. I think it's okay, but see what you think. --Chinasaur 02:07, May 29, 2004 (UTC)
Cleanup
Several sections of this article need cleanup. The section Media is misleading (a general medium may by any combination or none of the classifications given). The secion on The wave equation also needs some rewriting, particuarly to avoid repeated use of "In the most general" and to explain the meaning of the various symbols used (x, y, z, and t)
- done Ancheta Wis 08:36, 4 May 2005 (UTC)