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"There are two types of wave propagation: longitudinal and transverse. An example of the former is the guitar string, which creates sound waves."
This strikes me as incorrect; I thought the vibration of a guitar string is a transverse wave (the resultant sound waves are longitudinal, though).
PowersT19:12, 21 November 2006 (UTC)reply
You're right. The way the wave is propogated is by a transverse vibration. The wave itself is longitudinal. I'll fix it.
72.1.206.17416:49, 2 May 2007 (UTC)reply
Requires Good Amount Of Cleaning Up
This article needs some major cleanup. It doesn't explain the idea of nodes/antinodes well, nor how they are formed. It does not talk about how the nodes relate to the natural frequency of an object, nor interference patterns. There should also be information pertaining to the superposition principle, and the resonant lengths. I could go on and on. Work on this article please!!
72.1.206.17416:53, 2 May 2007 (UTC)reply
The article currently asserts that antinodes occur "midway" between nodes, which I interpret to be exactly halfway between them. But this assertion seems intuitively true only for symmetric waves. In fact, I think that I can construct a counterexample to this claim.
99.76.14.134 (
talk)
07:51, 3 January 2014 (UTC)reply
As long as the transmission medium of a one-dimensional standing wave is homogeneous, so the speed of the wave is constant along the medium, two oppositely moving sinusoidal waves of the same frequency will create a standing wave which itself has a sinusoidal amplitude as a function of distance along the medium. The nodes occur where the sine wave amplitude goes to zero, at points
The antinodes occur at points where the sine wave's amplitude is maximum, which occur at points equidistant between the nodes
This describes the common examples used in the article, as standing waves on a guitar string, or electromagnetic waves on s terminated
transmission line. If the medium is nonhomogeneous, such as a guitar string with a varying thickness, or a transmission line with a verying
characteristic impedance the standing waves will not be sinusoidal and the antinodes will not be midway between the nodes. --
ChetvornoTALK19:13, 25 September 2014 (UTC)reply