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1. ianbur+(OP)[view] [source] 2025-12-06 04:23:05
Tides aren't caused by centrifugal force but by differing gravity. You would be ripped apart by tides falling straight into black hole.

The near part of Earth experiences more gravity from the Moon, the far part less. The Earth moves in the center so the water bulges on the ends. Important part is that the Earth pulls things out their natural orbits.

With circular orbits, gravity and centrifugal force are balanced so could be considered difference on centrifugal force. But that isn't true for all orbits.

replies(1): >>empiko+Hm
2. empiko+Hm[view] [source] 2025-12-06 10:02:16
>>ianbur+(OP)
Simple illustration of what you are explaining in 1D. Imagine a simplified Earth:

Water -- Ground -- Water

Now let's add a Moon with gravitational pull. The pull stretches the system, because gravity is stronger the closer you are to the Moon.

Water ---- Ground ---- Water -//- Moon

The water is farther away from the ground on both sides now, since both sides stretched.

replies(1): >>heaven+kZ
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3. heaven+kZ[view] [source] [discussion] 2025-12-06 16:19:45
>>empiko+Hm
so why is left water further away from ground? this example make 0 sense
replies(1): >>nicwol+eo1
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4. nicwol+eo1[view] [source] [discussion] 2025-12-06 19:39:16
>>heaven+kZ
The Earth is being pulled away from that water, just as the water on the right is being pulled away from the Earth.
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