| Wirt responds:
|
|      http://www.ems.psu.edu/~fraser/Bad/BadCoriolis.html

I spent a good part of last evening filling and emptying my bath tub and
various sinks. While the sink experiments were inconclusive, the bath tub
consistently developed the proper counter clockwise whirlpool. Even when I
disrupted the little whirlpool with a clockwise swirl of my hand it would
re-establish itself in the counter clockwise direction.

My bathtub isn't circular with a drain at the centre, but a rectangular
shape with the drain near one end. (The north end in case that's
significant.:-)

The only conclusion that I can draw is that either the coriolis force does
have some effect, or there is some conspiracy in the bath tub
design/manufacturing industry to impose the correct spin for the Northern
Hemisphere. (My bath tub is after all an American Standard :-)

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