Often in sinks, toilets, bathtubs, etc., the water is already moving, though maybe very slowly. As the water drains, that slow rotation becomes more visible. In the case of a sink or bathtub, where the width of the pool decreases as it drai...
http://wiki.answers.com/Q/Why_does_water_run_down_a_bat...
Well anything in the southern Hemisphere will be going In a Counter-Clockwise motion and anything in the northern Hemisphere will be going clockwise. All this due to the inward centripetal force the earth exerts while spinning. The southern...
http://wiki.answers.com/Q/In_what_country_does_the_wate...
Moving water molecules across each other, a 'sideways' force, is called 'shear'. Resistance to shear is called viscosity. Imagine a large cylindrical vessel full of water with a small drain at the bottom. When you open the drain, water starts to flow down the hole.
www.newton.dep.anl.gov/askasci/phy05/phy05136.htm
The Bathtub Vortex; Article #523 ... Anyone who has tried knows that water can easily be made to swirl in either direction in a drain if it is prodded a little first by stirring. Scientists in both hemispheres have taken the matter seriously and conducted tests under carefully controlled laboratory conditions.
www.gi.alaska.edu/ScienceForum/ASF5/523.html
Which Way Will my Bathtub Drain? ... The effect of the Coriolis acceleration on your bathtub vortex is SMALL. To detect its effect on your bathtub, you would have to get out and wait until the motion in the water is far less than one rotation per day.
jcbmac.chem.brown.edu/scissorsHtml/liquids/bathtub.html jcbmac.chem.brown.edu/scissorsHtml/liquids/bathtub.html
Why does the water swirl down the bathtub drain this way in Berlin and that way in Rio?” He always had an answer (in this case, the Coriolis effect), and he never failed to visit them upon his arrival in Berlin.
www.facstaff.bucknell.edu/pbuck/chap3.htm
We took down a few mature trees, ... It was too far from the house to bring in water, ... Whenever I questioned whether it was worth the extra work to make my own butter— whether cultured, flavor-infused, caramelized (or should I say Maillardized?), or smoked— I had only to swirl a knob into a pan of steamed or pureed vegetables,
www.playingwithfireandwater.com/foodplay/ www.playingwithfireandwater.com/foodplay/
This is a real effect, but it isn't strong enough to affect the direction of water flow down a sink or bathtub. Any claims to ... [both swirl down the sink, shampoo first] Yay! I won your stupid bathroom products race. Bart: No fair! You only won because you had the inside track. If the water was spinning the other way --
www.snpp.com/episodes/2F13.html
Such a column is called a vortex--you might see the same effect when you let water run down a bathtub drain. Unlike tornadoes, dust devils aren't usually associated with storms.You typically see them on dry, sunny summer days when there is anywhere from a little to no breeze.
www.jpl.nasa.gov/news/features.cfm?feature=519
When heat is added to ice the ice turns to water, but stays at 32°F until it's no longer ice. When salt is added to ice it melts so rapidly that it uses some of it's own thermal energy to turn itself into water.
www.tomsvariety.com/ice_cream_freezers.htm