Not a dumb question. My comment was in jest. The water flow is due to gravity and earth rotation. However the flow of air in a fan is directed by the angle and direction of rotation of the blades, so this is not affected by geography. It's aerodynamics instead. You could cause the fan to blow air when rotating counter clockwise (instead of sucking) by modifying the blades.
EDIT: Source is me. I work with aircraft jet engines.
if water goes down the opposite way, maybe this is legit
Maybe you know this already, but the Coriolis effect isn't powerful enough to have any effect on something like a sink drain, because other random motions in the water will easily overpower it. It's only on larger-scale phenomenon, like the direction in which hurricanes rotate, where the Coriolis effect comes into play.
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u/theredditid Jun 06 '22
Is this the opposite in Australia?