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Toilet water swirls due to a law of motion called "Angular Momentum". This is one of the laws of planetary motion discovered by Keppler. It basically describes the natural movement of matter whether it be water in a toilet bowl, planets around a sun or galaxies around a black hole. This natural movement is of a circular nature.

Of course in a toilet bowl often times the water shoots out at an angle upon flushing so that a circular motion is created on purpose. But a more natural example of this is the water that goes down the drain in a bath tub. Again we see the same motion as a galaxy around a central mass in the center. This is theorized to either be a black hole or simply a globular cluster of stars forming a gravitic mass at the center of each galaxy to which other stars are pulled into via the strong gravitational pull of this gravitic mass or black hole.

For a much more detailed and specific explanation of angular momentum, keep reading and visit the Wiki link below.

In physics, the angular momentum of a particle about an origin is a vector quantity equal to the mass of the particle multiplied by the cross product of the position vector of the particle with its velocity vector.[1] The angular momentum of a system of particles is the sum of that of the particles within it.[2] Angular momentum is an important concept in both physics and engineering, with numerous applications. Angular momentum is important in physics because it is a conserved quantity: a system's angular momentum stays constant unless an external torque acts on it. Rotational symmetry of space is related to the conservation of angular momentum as an example of Noether's theorem. The conservation of angular momentum explains many phenomena in nature. http://en.wikipedia.org/wiki/Angular_momentum

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Why does the commode water swirl around counter clockwise in Australia?

I doubt water swirls in a different direction in Australia than in any other place. If it does it's caused by how the commodes are manufactured. The jets that deliver the flush water determine which way the water swirls.Answer:There is commonly held factoid ("sounds real but isn't" fact) that due to the Coriolis force water entering drains in the Northern Hemisphere swirls in the opposite direction to water in the Southern Hemisphere (just like hurricanes and cyclones are supposed to). Science has disproved this, indicating that the minor irregularities in the opening far outweigh the effect of the Coriolis force. The main cause of the water swirl (especially in toilets) is due to the design of the bowl itself.


Why is it harder to make water swirl counter clockwise?

It depends upon what type of water you are discussing. Hurricanes do swirl counter-clockwise in the northern hemisphere (clockwise in the southern) due to the rotation of the earth. In sinks, toilets, etc., that does not apply. For those situations rotation is dependent upon any pre-existing movement of the water, shape of the container, smoothness of the container, and location of the drain.


Why does water run down the bathtub drain like a swirl?

I think there are several factors that can cause the swirl. First, it is not, as many people erroneously think, the Coriolis forces. A tub is much too small for the Coriolis force to have any effect on the motion of the water. The location of the faucets and the shape of the tub probably have the the most effect. If the water already has some motion, it will cause the water to swirl in that direction.


What is a riddle that has washing machine as the answer?

I clean your clothes, but I'm not a maid. I spin and swirl, but I'm not a dancer. What am I?


What is swirl flow And tumble flow.How it is happening inside cylinder?

Swirl flow is the rotational movement of the air-fuel mixture inside the combustion chamber, while tumble flow is the directed vertical movement. Swirl flow is typically generated by the intake ports' design, like intake valve shapes or runner geometry, while tumble flow is often created by piston crown designs or intake port configurations. These flow patterns enhance mixing of the air-fuel mixture, improving combustion efficiency and reducing emissions in the cylinder.