Talk:Ripple tank

Remark regarding depth changes
I thought that only a water wave's speed decreased, not its wavelength, as it entered a region where the depth decreases. — Preceding unsigned comment added by 128.100.86.174 (talk) 17:20, 20 July 2007‎

I don't get it either. If the ripples slow down there will be fewer of them per unit of time, so that the frequency will decrease and its reciprocal the wavelength will increase. Lewis Goudy (talk) 19:53, 24 February 2017 (UTC)


 * If the number of wavefront peaks per unit time is unchanged, when they reach a region where the velocity is slower, they must "pile up" and crowd into a smaller space, hence shorter wavelength. Think of cars on a freeway encountering a patch where they must slow down; the spacing between cars must decrease. The number of cars arriving per unit time at a given point can't suddenly change, unless they just vanish by unspecified "magic". Reify-tech (talk) 06:33, 25 February 2017 (UTC)

Missing diagrams
The 2005 version of this article was more comprehensive than the current article; it included more diagrams and explanations. Maybe that content could be restored? 67.198.37.16 (talk) 19:22, 19 January 2021 (UTC)

This comment partially explains other problems. In-line text references to diagrams do not relate properly to the existing diagrams. Up, down and left are meaningless when all diagrams are on the right, and at least one referenced diagram seems to be absent.Tattersallvest (talk) 15:18, 21 April 2021 (UTC)