Talk:Transverse wave

message: Probably an excess of 'longitudinal' material here after the merge.
Charles Matthews 21:28, 20 Feb 2004 (UTC)
thread_title: Excess

message: Some of us just need to know what a transverse wave is. Simple basic information needs to be kept for those of us without a physics degree!  — Preceding unsigned comment added by 81.99.107.237 (talk) 16:41, 17 August 2014 (UTC)
thread_title: Simplicity

message: the image looks awesome, somebody should never change it, its better than sliced bread —Preceding unsigned comment added by 84.66.153.102 (talk • contribs) 11:55, 18 December 2006 (UTC)
replies: text: Looking back at this; there only needs to be a 90deg phase difference if the EM radiation has circular polarization; for linear polarization there is no phase difference, so the figure seems reasonable. Klbrain (talk) 11:37, 6 June 2017 (UTC)
thread_title: image

message: Confusing in second paragraph.  Probably need to state that in seismology, have transverse and longitudinal waves. —Preceding unsigned comment added by  24.225.203.96 (talk • contribs) 20:34, 16 February 2006 (UTC)
thread_title: Confusing

message: I'm not a physicist so I'm not going to edit the paragraph which states that "transverse waves travel slower than longitudinal waves".
Maybe someone can expand on it though because I'm left confused by it: I thought light (an electromagnetic wave hence transverse) travels conciderably faster than sound (a longitudinal wave)!
:Don't mix wave speeds for different media and different waves (electromagnetic and sound). Transverse waves travel slower than longitudinal waves in the same medium. --Berland 08:26, 12 April 2007 (UTC)
thread_title:  Transverse waves travel slower than longitudinal waves ? 

message: Since mentions polarity needs a reference to polarization and perhaps the three types thereof.  -Wfaxon 13:44, 4 August 2006 (UTC)
thread_title:  Polarization 

message: Im trying to get clear in my mind the reason for the fact that longitudinal distubances in transverse waves can actually travel faster (or slower) than transverse fluctuations. Its something to do with the derivative of a function I think but could someone point me in the right direction. Do I start with the wave equation?--Light current 16:22, 16 September 2006 (UTC)
thread_title:  Speed of logitudinal disturbance in transverse waves 

message: You are on the right track with the wave equation. The easiest way to visualize this idea is to think about a a wave that travels on a streched string, like the pluck of a harp or the striking of a piano.
The wave equation for a traveling transverse wave on a stretched string is
d²y/dx² = μ/T d²y/dt²
Where T = tension on the string and μ = mass per unit length and the wave velocity (longitudinally) = The square root of (T/μ)
This equation comes from an analysis of the forces exerted on a very small length of the string as it is bent under tension.
A solution of the above differential equation gives the motion function 
y(x,t) = A sin ((2π/λ) (x-vt)) 
where λ = wavelength of the transverse vibration and v = the longitudinal velocity
This allows you to see the difference in the longitudinal velocity and the transverse velocity. 
The transverse speed of a propagating wave is not constant. In order to see what the maximum velocity of the transverse function is, you have to take a derivative irt time of the above function. that gives you 
dy(x,t)= A (2πv/λ) cos ((2π/λ) (x-vt)
Where A2πv/λ will be your maximum velocity in the transverse direction. 
The main idea is that the velocity in the transverse direction will change depending on the phase of the wave.The phase is what all the terms in the cos are equal to. When the Y = the maximum height, the velocity will = 0 because it cooresponds to a 90 degree phase. The cos of 90 degrees = 0 so velocity will equal zero. When the wave comes through the equilibrium point transversely, its at its maximum velocity on the Y axis which cooresponds to a phase of 0 degrees or 180 degrees.    
The velocity on the X axis (longitudinally) will always be constant because it is determined by the qualities of the medium it is traveling. For a string, it happens to be The square root of (T/μ)
hope this helped.
:Yeah its useful and a good start. THanks--Light current 12:44, 18 December 2006 (UTC)
thread_title:  Answer for above question 

message: This article looks fine to me, can someone suggest a reason why the cleanup tag should still be applied to this page? —The preceding unsigned comment was added by 129.101.55.134 (talk) 06:19, 22 February 2007 (UTC)
replies: text: various parts of the article have somewhat strange wording, repetitiveness(if that is even a word), and other small things, I edited some out, somebody else look around for similar stuff. --FranzSS 04:51, 26 April 2007 (UTC)
thread_title:  Why does this article need cleaned up? 

message: The first paragraph is perfectly clear now and, looking at the revised article, there is no reason for the clean up tag. I suggest it be removed.
Wikipedia really need an entry for the Transverse Electromagnetic Wave. Key information about it cannot be extracted from this entry. Also see electromagnetism.demon.co.uk/17136.htm . Ivor Catt 24 July 2008  —Preceding unsigned comment added by Ivor Catt (talk • contribs) 14:37, 24 July 2008 (UTC)
thread_title:  'Cleaned Up' tag removal 

message: There is a reference at the bottom. Reference could have been added and tag not removed at some point... TravisMay6 (talk) 03:44, 21 March 2010 (UTC)
thread_title:  Removed "No Reference Tag" 

message: The Electric and the Magnetic components of the wave should have phase difference of pi/2. Then the wave can carry energy in the direction of propagation, represented by the Poisson's vector, rotating in the plane, perpendicular to the direction of propagation.
bspasov@yahoo.com  — Preceding unsigned comment added by 98.154.17.2 (talk) 03:54, 13 March 2012 (UTC)
replies: text: Disagree. A phase difference of pi/2 is only needed for circular polarization, not for linear polarization. The electric fields can be in phase, but with orthogonal axes, and then the Poynting vector (I think that this is what you mean) does indeed point along the axis of energy transfer. Klbrain (talk) 11:44, 6 June 2017 (UTC)
thread_title:  Light wave chart is wrong. 

message: Shouldn't water surface waves also be thought of as longitudinal waves? Motion of individual molecules have both transverse and longitudinal components.174.253.198.233 (talk) 06:42, 8 November 2012 (UTC)
thread_title:  Ripples in a pond-transverse wave? 

message: Can someone explain why the section on Electromagnetic Waves consists largely of material concerning light rays? The single cited source is to a Zemax software user's guide chapter describing ray tracing. By contrast the corresponding section on the Electromagnetic Radiation page linking to this one is a clearly written description of electromagnetic wave model, being transverse waves, what that means etc.AveVeritas (talk) 12:41, 17 August 2013 (UTC)
thread_title:  Light Rays 

message: I'm a n00b, but AFAIK ripples on a pond are surface waves, which are definitely not a subset of transverse waves (or longitudinal ones, for that matter). (Although to be fair, they're mentioned as a way to help visualize the path of transverse waves, and not explicitly as examples of transverse waves.)
Someone should probably replace that with the Slinky mentioned in my previous section on this page, or add a disclaimer of sorts.
YatharthROCK (talk) 14:28, 1 February 2014 (UTC)
thread_title:  Misleading Example of Ripples in Intro