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# OT Poll, Coriolis Effect and your toilet

Topic closed. 18 replies. Last post 14 years ago by Rick G.

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Does water rotate in different directions in different hemispheres?

 Yes [ 13 ] [72.22%] No [ 5 ] [27.78%] Total Valid Votes [ 18 ] Discarded Votes [ 4 ]
South Carolina
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 Posted: October 18, 2003, 1:38 pm - IP Logged

Hmmmm, maybe I should get a li

Okay, now I believe you can predict lottery numbers

South Carolina
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 Posted: October 18, 2003, 5:28 pm - IP Logged

Stolen from a couple of websites.

Compared to the rotations that one usually sees (tires on a travelling automobile, a compact disc playing music, or a draining sink), the rotation of the Earth is very small: only one rotation per day. The water in a sink might make a rotation in a few seconds and so have a rotation rate ten thousand times higher than that of the Earth. It should not be surprising, therefore, to learn that the Coriolis force is orders of magnitude smaller than any of the forces involved in these everyday spinning things. The Coriolis force is so small, that it plays no role in determining the direction of rotation of a draining sink anymore than it does the direction of a spinning CD.

The direction of rotation of a draining sink is determined by the way it was filled, or by vortices introduced while washing. The magnitude of these rotations may be small, but they are nevertheless gargantuan by comparison to the rotation of the Earth. I decided to include a picture of a draining sink, and the first one I tried in my house was found to drain clockwise (the opposite of what the silly assertions would have it do here in the northern hemisphere). This direction was determined entirely by the way the tap filled the sink. The direction of rotation of a draining toilet is determined by the way the water just under the rim is squirted into the bowl when it is flushed.

A surprisingly large number of my undergraduate students tell me that their high-school teachers told them that sinks drain in opposite directions in the two hemispheres owing to the rotation of the Earth. Why would a teacher offer such garbage to students when it is so easy to check. A trip to the school washroom (let alone the ones at home) will reveal drainage in both directions (which would certainly require the equator to assume a tortuous track through the countryside).

Is knowledge just a bunch of abstractions to be memorized with no recourse to the relevance of everyday experience?

Sigh... I dont know why teachers do this. I can but assume that those who do so just never feel any need to wash their hands --- or their minds.

Okay, now I believe you can predict lottery numbers

Stone Mountain*Georgia
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 Posted: October 18, 2003, 5:38 pm - IP Logged

If your toilet is big enough. LOL

I'm not going to go against Thomas on this toilet subject thing. In a court of law he could easily and legally be certified an expert witness on this subject. Things that go in reverse...that is.

I'll bet ya one thing however....if our's swirl to the right or clockwise ....Thomas' Toilet goes the other way..... and flushes counter clockwise.... for sure. LOL

New Zealand
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 Posted: October 18, 2003, 5:51 pm - IP Logged

Heres one for you then;

If there is a satelite in space hovering around the equator in one constant direction and the people in the Northern hemisphere say it is moving from left to right, What would the people in the Southern Hemisphere say?

Same can be said with the motion of water when in a bowl.

When looked at from the top it would be rotating in a different direction to the view from the bottom.

Therefor I vote yes....Are there any mad scientist out there to prove this.

South Carolina
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 Posted: October 18, 2003, 6:13 pm - IP Logged

I don't know, I have neve

Okay, now I believe you can predict lottery numbers

New Zealand
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 Posted: October 18, 2003, 6:19 pm - IP Logged

Any volunteers to prove this t

Stone Mountain*Georgia
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 Posted: October 18, 2003, 6:58 pm - IP Logged

The power to move oceans......but evidently not of sufficient power to over come the magnitude of the"gargantuan obstacles" that are found in Thomas' toilet. Thats not a fair test Thomas. LOL  .

South Carolina
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 Posted: October 18, 2003, 7:38 pm - IP Logged

Is it human nature for a person to hold on to their closely held beliefs, in spite of tons of scientific evidence to the contrary?

By the way, www.snopes.com is a good place to start bursting your bubble.

Okay, now I believe you can predict lottery numbers

United States
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 Posted: October 18, 2003, 7:41 pm - IP Logged

http://www.terrylove.com/wc/totocst744s.htm

when it comes to toilets thats the one to get - its designed to handle 900 grams of waste and has a 3" wide valve. you could poop out a thanksgiving turkey and never need a plunger. had a plumber recomend the toliet because my old one took forever to unplug.

http://www.totousa.com/toto/viewperformancetoilets.asp

i only mention that because after spending weeks with a plunger now i dont need one

mid-Ohio
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 Posted: October 18, 2003, 7:58 pm - IP Logged

http://www.snopes.com/science/coriolis.htm

RJOh

Stone Mountain*Georgia
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 Posted: October 18, 2003, 8:09 pm - IP Logged

Thomas .......still just having fun with this topic. Your right on the mild effects of the Coriolus in the face of stonger influences. You will have to admit the effect still has some powerful manifestations, however.

It is funny.. that your particular toilet is contrary to all the others in the northern hemisphere. One can only guess at the entropy that has been introduced to affect this "Random dvent".

That was a real crack up! No pun.... LOL

South Carolina
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 Posted: October 18, 2003, 8:28 pm - IP Logged

Oh, I had my toilet shipped from the southern hemisphere, I guess it hasn't realized where it's at.

Okay, now I believe you can predict lottery numbers

Stone Mountain*Georgia
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 Posted: October 18, 2003, 8:45 pm - IP Logged

This site is fun ...but doesn't really help clarify the question does it?

http://www.eoascientific.com/interactive/the_coriolis_effect/the_coriolis_effect.html

New Zealand
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 Posted: October 18, 2003, 8:58 pm - IP Logged

This forum has proved that it

Stone Mountain*Georgia
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 Posted: October 18, 2003, 9:17 pm - IP Logged
Quote: O

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