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What happens in an airplane?
In article <3oca0a$3do@net.auckland.ac.nz>,
mdw@ccu1.auckland.ac.nz (Woodhams) wrote:
>
> Fill the bath with water, then swirl the water clockwise. Wait a bit
> and let it out - it will spiral out clockwise. I've tried this - you
> can make the water swirl out whichever way you want.
>
> The consistency of the results is because the water from your tap
> always gets deflected in the same direction when you fill the bath, so
> the angular momentum of the water in the tub always has the same
> value. In a different bath (same hemisphere) it could consistently go
> the other way. (The previous poster was incorrect - in a given tub,
> the factors won't be random.)
>
>
It's true, If I swirl the water anti-clockwise it will go out that way
but (and I really haven't made a serious study of it nor do I want to
for that matter) it does not seem random. And it doesn't really seem to
be dependant on which tap you use. As long as the water is reasonably
steady (ie: not visibly swirling anti-clockwise) it goes out clockwise.
Ordinarily it swirls out clockwise from any sink or tub or bath I use.
I would think it should be the same in New Zealand...
Out of interest I will check it out on a airplane when I next cross the
equator. It may be, as other posters have suggested, that the
mechanical vibrations will prevent getting consistent results but it
would be interesting if it was consistently swirling out clockwise on
one side of the equator and anti-clockwise on the other. Has anyone
tried it yet?
Madhudvisa dasa |
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