Re: Coriolis Effect Redux

On Wed, 20 May 2009 15:44:29 +0200, nospam@xxxxxxxxxxxxxxxx (J. J.
Lodder) wrote:

Nicholas <Lawrence_Glickman@xxxxxxxxxxx> wrote:

On Wed, 20 May 2009 11:28:10 GMT, "David L. Wilson"
<dwilson314@xxxxxxxxxxx> wrote:


"Sam Wormley" <swormley1@xxxxxxxxx> wrote in message
news:hgLQl.706032$yE1.196794@xxxxxxxxxxxx
Nicholas wrote:
On Wed, 20 May 2009 02:41:24 GMT, Sam Wormley <swormley1@xxxxxxxxx>
wrote:

Nicholas wrote:

Yes it has only been 10 years since Wolfgang Rupprect and I and others
had debate about this subject. Many dismissing it as a factor in
which way a toilet bowl drains, saying that the orientation of the
cleaning jets determined direction, etc. and so forth.

Well here:
http://www.liveleak.com/view?i=e49_1242625048
you can see a REAL demonstration of the effect, as only a few meters
difference at the equator, North or South of the Real Equator, will
cause the water to drain in one direction or the other (CW or CCW).

Lg

Baaaaad Physics!

Well an *ordinary citizen* isn't going to know that now.

I think there is an information divide, between we mortals and the
scientific community. Fortunately, there are groups like this one
that can help the unknowing unwashed masses along.

1. The water in the video was anything but still, negating the sole
influence of the Coriolis Effect.

2. Placing leave in the water adds motion to the water, and it just
happened that the girl placed the leaves in such a way as to help
induce the vortex in the "expected" direction--talk about a biased
experiment!

Hi Sam,
A problem I see with the above is that if the earth's rotation was a factor
it would be an ongoing influence as the water drains while the other factors
mentioned are just an initial one. In fact, in draining water, I have
noticed that once it setteles to swirl a certain way, if I force it to swirl
the other way (and then stop the forcing) , it eventually will return to the
way it was swirling.

A more amazing thing, is how many people ignore the fundamental principal of
physics and do not actuallly go to many drains and do the experiment (rather
than refer to web pages, arguments without numbers, etc.). They will be
surprised.

Greetings Dr Wilson,

I am at 41 degrees North Latitude, and I can say, my drains seem to
ALWAYS (without exception) drain CCW. They will start out without any
vortex, but as the water gets lower in level, the vortex begins to
form and it is definitely like a CCW water tornado.

If it were *random,* we would have 50% CW and then 50% CCW, but in my
observations, it is always CCW _here_.

You must have systematically biassed initial conditions,
from where your tap is in elation to the drain,
or from the way you pull the plug, or or or,

Jan

No, I don't think so. I can go to any sink in any building and
reproduce this CCW effect, so it isn't being caused by anything at my
house.

In fact, I used a toilet pluger to block the drain while I just filled
my bathroom sink and withdrew it straight up. Guess what. CCW.

I bet if I go downstairs to my laundry tub and use the toilet plunger
to act as the stopper, I will see the SAME thing: CCW.

I can't do that -now-...my wife is doing the laundry ;-|

Lg

.

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  • Re: Coriolis Effect Redux
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