Question:

Does water run clockwise or counter clockwise down the drain on the equator?

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Directly on the equator!

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  1. this whole CW or CCW thing with water and drains is a myth. And it's so easy to disprove, just look at a bunch of different sinks, and some will drain CW, some CCW. It doesn't matter where on the earth you are.

    All it depends on is various irregularities in the drain or the shape of the sink, or an initial push from the faucet to start it in one direction, and it continues that way.

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  2. it goes straight down

  3. It depends on if the drain is north or south of the exact Equator.

    The magnetic poles touch causing a very definite line of force at which point the water cascades straight down

  4. The old clockwise/anticlockwise draining water thing is something of a myth. The Coriolis effect, a force imparted by the spin of the Earth, is not strong enough to affect the way water goes down a drain - local effects like movement of the water and the shape of the container and drain are far stronger and overwhelm what little effect the Coriolis force has. I myself have observed water in my sink and bath draining in both directions, depending on how the water has been moving - for example, turning on the hot tap in my bathroom sink tends to make the water drain anti-clockwise because the hot tap is to the left of the drain (it hits the rising curve of the front of the bowl and naturally flows back down to the right, setting up an anticlockwise motion), while the cold tap to the right of the drain does the opposite. Just swishing the water around with your hands in one direction or the other before you pull out the plug can change the rotation of the draining water. The Coriolis effect is only strong enough to significantly affect very large things like weather systems or the trajectory of long-range naval guns.

  5. Testing this premise is difficult because it is almost impossible to get residual currents out of the body of water.  However, I've seen water vortexes spin clockwise in Buenos Aires, and counterclockwise in New York.   The coriolis force is very small, though, and a little residual current can confound your observations.  On the equator there would be no coriolis force, and hence the real answer to your question is "yes" as it could spin either way.  Proving it experimentally is not easily done because of the residual currents, however.

  6. Water spinning clockwise and counter clockwise in different hemispheres is a myth. The water depends on polarity not on the gravitation from the earth.

  7. It goes straight down!!!

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