Conceptual Question Involving Fluids

[ItsImpulse]

A sphere (with density less than that of water) is placed into 2 different cylinders. One with a spinning column of water and the other with a still column of water. Why does the sphere in the spinning column of water take much longer to float to the top of the cylinder?

I was thinking about the sphere taking a larger trajectory thus experiencing more retarding force from the spinning column of water but is there anything else that I am missing?

 

[insightful]

Here you go (it's the Coriolis acceleration):

http://www.google.com/search?q=moti......1ac.1.34.heirloom-serp..26.0.0.IR9x-TPcIKI