19th August 2018

livescience
11

Do toilets swirl opposite direction southern hemisphere?

It is a commonly held misconception that toilet water always drains counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere because of the Coriolis force an acceleration imparted by the Earth's rotation.

Keeping this in view, do the toilets flush backwards in Australia?

Australian Toilets Don't Flush Backwards Because of the Coriolis Effect. File under "News to Me": you know that old story about how northern hemisphere toilets flush counter-clockwise, and southern hemisphere toilets (and buckets, drains, and such) flush clockwise, due to the Coriolis effect? It's bogus!

Do toilets flush in the opposite direction in the Southern Hemisphere?

The Coriolis effect is probably the most scientific excuse humans have for staring into toilet bowls. The effect makes objects on the Earth curve when they should go straight, and it's why some people insist that toilet bowls flush in the opposite direction on the southern hemisphere than in the northern hemisphere.

Do toilets flush in the opposite direction south of the equator?

Hi Lisa, This is an age-old myth. Although hurricane motion in the northern hemisphere is counter-clockwise and cyclones in the southern hemisphere rotate in a clockwise direction the Coriolis effect on water in a flushed toilet is minuscule compared to the effects of even a slight toilet bowl asymmetry.
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