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water flow direction in australia

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  • water flow direction in australia

    ok guys...big discussion at work. for you guys down under. if you have a standing body of water in a sink and you pull out the plug. which direction does the water drain? clockwise or counter clockwise
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  • #2
    Re: water flow direction in australia

    Depends on which side of the equator ur'e standing, here in Sweden it runs clockwise.
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    • #3
      My friend is down in Australia for IQP (a form of study abroad at our school), and he said the first thing he did when they got of the plane was go to the bathroom and fill up the sink. The water does indeed go the opposite way than it does up here. (In MA). He did say that it is kinda easy to make it go the right way by swirling your finger tho.
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      • #4
        the texture of the basin can also effect the flow
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        • #5
          well thanks guys!
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          • #6
            This reminds of that episode of the simpsons where bart phones someone in australia to check which way the water flows.
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            • #7
              I just had to go and check. Counter-clockwise.
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              • #8
                Reminds me of an X-Files episode.

                FYI ... It's called the Coriolis Effect (but it's a weather term used loosely in this case)

                http://www.ems.psu.edu/~fraser/Bad/BadCoriolis.html

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                • #9
                  So which way does it spin if you are ON the equator?

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                  • #10
                    It doesnt. A Swedish radio station called some ppl and found out
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                    • #11
                      This is an old "urban legend".

                      Water will swirl in whatever direction the pipework, underneath the sink is angled to.

                      Toilets swirl in a certain direction, depending on how the water jets are aimed.


                      Think about it. If there was a centrifugal force on all objects (including water), then you should be able to see all objects react to it.

                      A glass full of water should be slowly swirling on its own. Dust should be swirling. Placing a piece of paper or a feather in water should cause it to rotate. But it doesn't, since all the objects on earth already have the same centrifugal force on them, and are not accelarating in reference to each other.


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                      • #12
                        and when you simply drill a hole in a box and fill it up?
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                        • #13
                          I believe the residual currents you created while filling it up will usually dictate which way it flows. Currents based on water temperature can do this as well.

                          The Coriolis Effect has such a little effect on something like this that other effects usually cause the route of the flow. If you could completely stabilize the water then yes it would always flow one direction depending on which side of the equator.
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