this post was submitted on 08 Sep 2023
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Thereβs no such thing as tides. Gravity holds the water as the earth rotates
You mean in the same way that there is no centrifugal force?
Technically right, but doesn't matter if you are in the rotating frame of reference.
But aren't the tides caused by external gravitational forces (the moon?)
Theyβre saying the same thing, just backwards.
Tides are a phenomenon where the height of the edge of a body of water shifts relative to the shore. A phenomenon is a thing. Why should explaining its cause in those terms have any effect on that?
I'm confused: you say there's no such thing as tides, and then explain what tides are?
So since it's pulled on both sides of the earth water is essentially "lighter" and on the sides it's "heavier" if that makes sense. The water flows from the heavier places to the lighter places like down a small slope due to gravity.
Sorry, I wasn't clear. I understand how tides work; the source of my confusion is the person I replied to both stating that they don't exist and explaining how they work, which is mutually contradictory: if they don't exist, how can they work at all?
https://youtu.be/dBwNadry-TU?si=DHVVrrJl2uSpeX7-