Does the Coreolous Effect play a role in how water goes down the toilet in both hemispheres, or is it just the plumbing?
120136
Due to the effect, cyclones rotate counter-clockwise in the northern hemisphere, and clockwise in the southern hemisphere. However, contrary to popular opinion, it has no noticeable effect on the rotation of water in sinks and toilets - see the toilets/bathtubs section below.
98420
It should flow counterclockwise because of the Coriolis effect.\n\nHowever:\n\n>> But, the Coriolis force is very small, indeed. \n \nCompared 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. \n\nThe 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.<<\n\nI guess you'll just have to observe - I have made the water in kitchen sinks swirl the "wrong" way just for the heck of it, and it doesn't begin to immediately go the "right" way unless I act on it.
257279
It has been proven that bacteria from a toilet flush can travel approx six feet.  Always put the lid down.  Also highly recommended that toothbrushes, floss etc. get put in a medicine cabinet.  Gross eh?
73264
It's not true. The phenomenon is true but you would need massive amounts of water to see it and the toilet , sink and bathtub doesn't suffice.
421260
For the same reason that water goes down the plug hole in a vortex.  Air goes from high pressure to low pressure, but it goes round areas of low pressure in ever decreasing circles.
188961
It depends greatly on the shape of the tub or bowl and any currents in the water. There is a myth that in the northern hemisphere, water goes around the drain in a clockwise direction, because of the Coriolis Force (which affects how storms form due to the earth's rotation) - but generally our sinks and toilets and tubs aren't big enough to allow the Coriolis effect to exert as a factor. Check out the links:
124844
Nah. The water spin cycle is purely equatorial, and related to the spinning of the planet in relation to the section of the earth where your toilet is.
420005
Water is so different than every other fluid, there are too many reasons to list.  Books are written on this topic, so I'll point you to an interesting link.
227954
Nothing much will happen. It may suck your butt for a bit. maybe you're into that? haha. But you will not get sucked into the drain or anything.
288259
As with all these type sof question the answer is : it depend sentirely on your scale of measurement.\n\nYou are essentially dealing with a fractal relationship. The root sans hairs theroetically has a smooth and hence finite area. The root with hairs has a convoluted area which is potentially infinite.
184602
In theory it affects the passage of time aboard the vessel IF it travels in the opposite direction of the earth's rotation... I suggest you read some Stephen Hawking.
26736
It's due to the rotation of the Earth - specifically the Coriolis Effect. See http://answers.yahoo.com/search/search_result?p=Coriolis+Effect\n\nMy answer assumes you have a circular toilet which drains right down the middle and recieves no directional impulse from the water flowing in ;-). ie. Under strict controlled conditions, you can make water spin in opposite directions as it drains through a hole.
110351
Try a search at http://scholar.google.com for scientific journals and papers.\nI found a reference to both conditions in the report of a meeting (but it's dated, back to 1984):\nhttp://www.springerlink.com/(ajt3uaqoyemidvn1ctmeng45)/app/home/contribution.asp?referrer=parent&backto=issue,2,15;journal,138,141;linkingpublicationresults,1:101176,1\nA more recent reference:\nhttp://www.co-urology.com/pt/re/courology/abstract.00042307-200105000-00004.htm;jsessionid=EJbhE8FmcU9PcdyGTBP1kds3i2j7oQ7G39yVJPM0Uf5huKE1m6u6!276062241!-949856144!9001!-1
520755
Hi,\n\nI doubt it. If you are retaining water you wouldn't be urianting. In fact in severe cases you wouldn't be going to the toilet at all. Maybe its just extra weight.
329800
I would guess that it would slow down as some water is redistributed toward the equator.  This slowing would be imperceptable without the use of atomic clocks.  It would also be affected in another way.\nThe effect of the moon's gravity on the oceans is causing the rotation of the earth to slow.  Kind of a drag.  One day, the earth and moon will be in locked step, with the moon in the same place in the sky 24 hours a day.
282522
Basically add the water lost through diarrhoea to the water lost through normal peeing and that's more water lost than usual therefore it needs to be replaced. When you pee it's perfectly normal therefore your body can handle the amount of water lost but diarrhoea isn't part of your body's normal digestion process therefore it's excess water that's lost.\n\nWhat happens when you get diarrhoea is your body has some sort of virus or bug or just something that it does't like therefore the digestive system (which is the system that gets rids of wastes and your body's toxins) will work faster than normal to get rid of that substance. Usually when digested food gets to the large intestine (the part right before your anus which is where the poo comes out) it absorbs any excess water and produces "normal consistency" poo. However because your entire digestive system is working faster than usual the digested food just kinda "zooms" through the large intestine without time for it to absorb the water therefore it comes out more "watery" than usual. Because this water was not absorbed into your body when it should have been, you will be lacking water which is why you need to drink plenty of water to replace it. \n\nHmm... does that make sense? Lol.
239750
when u swirl the water, if the object floating on it is not moving at the same speed, it would have a lower outward force. They r then pull by gravity towards the lower point... the middle of the swirling water. whichever thing slows down first, it will "drop" to the middle.\n\nI notice too that even if the thing does not float, like sugar, they r concentrated at the middle in the bottom. I think that's due to gravity too. When u swirl, water goes to the side and when the roundabout motion slows, water slowly falls back down to the middle. there's a net flow toward the middle and hence dragging the sugar to the middle.