Which Way Does Your Water Swirl?

Which way does the water in your toilet bowl swirl when you flush?
If you live in the northern hemisphere, it swirls counter-clockwise, while if you live in the southern hemisphere, it swirls clockwise. Two new synchronized videos posted by a couple of science-minded YouTube stars show that the swirl of your toilet water has more to do with the force of your toilet's flush than the hemisphere in which you live. The two YouTubers set up the same experiment in the northern and southern hemispheres to test the Coriolis Effect — the governing principal behind the water swirl idea. Once the water started draining, they found that water draining from the kiddie pool they used in the southern hemisphere swirled clockwise, while water in the north swirled counter-clockwise.
This happens because of the Earth's rotation.