Common and persistent misconceptions tend to be rooted in truth. The idea that toilets flush in opposite directions in opposite hemispheres is a great example. Any frequent traveler with enough equator-crossing experience can tell you that this is not the case. But why don't flushed toilet swirl in opposite directions in each hemisphere? It turns out there is a real physical phenomenon fueling this misconception. It's called the Coriolis effect.
Turn, Turn, Turn
Science in Your Toilet
Written by Austin Jesse Mitchell July 14, 2016
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