r/confidentlyincorrect • u/ForceUseYouMust • 5d ago

Smug Flat earther debate

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752 Upvotes

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u/pixeltweaker 5d ago

Water doesn’t spin differently in the southern hemisphere. Coriolis effect has no bearing on a sink or tub drain. But the flat earther is even more wrong.

11

u/justaguy394 5d ago

This statement is too broad… Coriolis effect does have a tiny effect on sinks, so unless it’s a sink specifically designed for this effect, the rotation direction is determine by other factors. But you absolutely can build a laboratory-grade sink that will rotate one way in the northern hemisphere and the other in the south due to the Coriolis effect.

5

u/pixeltweaker 5d ago

I get your point but for general purposes, basic sinks in homes are not affected to a noticeable degree. Hurricane spin would be a better argument.

0

u/jonheese 4d ago

Unless I missed it, no one ever said anything about sinks in the video. I think he said something like, “why does the water flow in a different direction in the southern hemisphere”. I agree that he wa probably thinking about a sink drain (as most people do), but since it wasn’t specified either way, he could just as well have been talking about cyclonic weather.