describe how sound changes when you change the amplitude
why hello there, amplitude is a very interesting thing. :D —Preceding unsigned comment added by 81.240.185.50 (talk) 17:43, 9 April 2008 (UTC)
Spiral
edit
This image does not reveal the spiral coil property of a wave.Anwar (talk) 18:48, 10 May 2008 (UTC)
