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When making a wineglass "sing", if the glass is partly full of liquid,
then tiny standing waves appear on the surface. I've always wondered, do
they have a name?
I managed to produce a much larger example of these waves in a swimming
pool. By oscillating a long foam cylinder perpendicular to its axis in
the water, after a few moments a set of "standing waves" appear which are
adjacent to the cylinder and with the antinode peaks oriented
perpendicular to it, like so:
TOP VIEW OF THE CYLINDER
__
| |
| |
| |----
| |
| |------- antinodes
| |
| |---------
| |
| |-------
| |
| |----
| |
|__|
Anyone familar with this effect?
((((((((((((((((((((( ( ( ( ( (O) ) ) ) ) )))))))))))))))))))))
William J. Beaty SCIENCE HOBBYIST website
billb@eskimo.com http://www.amasci.com
EE/programmer/sci-exhibits science projects, tesla, weird science
Seattle, WA 206-789-0775 freenrg-L taoshum-L vortex-L webhead-L