Vortex in a Bottle

Another home experiment to produce a system for which A^F<>0. Whenever you see helical forms, think A^F <> 0.
(Animated gif = 177K)

I have a similar photo of stream of water coming from a small copper tube embedded into the side of a rock cliff in southern France. There are two differences; first, the liquid is confined in the compliment to the domain of the picture above, and secondly, the stream executes a parabolic arch as it falls to the ground, but with a STEADY time independent torsion twist - no fluctuations!

The animated gif file comes from JLNaudin

Copyright © 1995-2009, CSDC Inc. All rights reserved.
Last update 01/23/2009
to HomePage