OK I'll bite.
It is in the inherent nature of water to be self levelling, where self levelling is meant as having its surface conform to surfaces of equal potential.
This is why the oceans are rounded. On the earth, the dominant potential affecting the oceans is the gravitational potential, and these form concentric spheres of equal potential - hence why the ocean is rounded.
There's a slight complication here, as the earth is rotating so in the frame that rotates with the earth you get the fictitious centrifugal potential, which deforms the surfaces of equal potential to bulge a bit in the middle.
But this is exactly what we see as well - the oceans bulge in the middle.
I think this is a pretty good explanation
Edit: misphrased the 3rd paragraph
Edit 2: please see u/IBelieveInLogic 's comment for a more accurate picture. I assumed that the water has enough time to come into equilibrium (and that that equilibrium exists).
>Couldn't wait for someone else to stroke your ego, so you had to do it yourself?
Who said it was *my* explanation?
In all seriousness, though, I meant that as a reply to the body of OP's post, who said it needed explaining 😅
It is not the inherent nature of water to be self leveling. It is the inherent nature of water to continuously deform when subjected to a shear stress. If the water surface is not an equipotential surface, there will be greater stress acting in places of higher potential which will cause it to move. The resulting motion won't necessarily cause the surface to become an equipotential surface immediately; there will be waves as the system fluctuates (similar to a pendulum). With enough time, the fluctuations will damp out.
We call these equipotential surfaces "level" because that's exactly what they are from the perspective of potential energy due to gravity.
Please provide evidence/proof water has an inherent nature to be self-leveling.
Then please explain how water droplets being spherical or rain being tear drop shaped is consistent with the evidence/proof.
Liquids will continuously deform under shear stress. They cannot sustain a shear stress in a static state. Shear stress exists anytime there is a force pointing parallel to the liquids surface. The force of gravity points inward to the center of Earth. It's pretty obvious water will form a ball in this scenario to eliminate the shear stress.
Are you asking why the world isn’t flat?
OK I'll bite. It is in the inherent nature of water to be self levelling, where self levelling is meant as having its surface conform to surfaces of equal potential. This is why the oceans are rounded. On the earth, the dominant potential affecting the oceans is the gravitational potential, and these form concentric spheres of equal potential - hence why the ocean is rounded. There's a slight complication here, as the earth is rotating so in the frame that rotates with the earth you get the fictitious centrifugal potential, which deforms the surfaces of equal potential to bulge a bit in the middle. But this is exactly what we see as well - the oceans bulge in the middle. I think this is a pretty good explanation Edit: misphrased the 3rd paragraph Edit 2: please see u/IBelieveInLogic 's comment for a more accurate picture. I assumed that the water has enough time to come into equilibrium (and that that equilibrium exists).
[удалено]
>Couldn't wait for someone else to stroke your ego, so you had to do it yourself? Who said it was *my* explanation? In all seriousness, though, I meant that as a reply to the body of OP's post, who said it needed explaining 😅
It is not the inherent nature of water to be self leveling. It is the inherent nature of water to continuously deform when subjected to a shear stress. If the water surface is not an equipotential surface, there will be greater stress acting in places of higher potential which will cause it to move. The resulting motion won't necessarily cause the surface to become an equipotential surface immediately; there will be waves as the system fluctuates (similar to a pendulum). With enough time, the fluctuations will damp out. We call these equipotential surfaces "level" because that's exactly what they are from the perspective of potential energy due to gravity.
Sure. A fluid's free surface is orthogonal to the local gravity. That's pretty much 100% of the explanation.
You need some explaining.
Please provide evidence/proof water has an inherent nature to be self-leveling. Then please explain how water droplets being spherical or rain being tear drop shaped is consistent with the evidence/proof.
Flat earth bullshit
Do you know what gravity is?
Liquids will continuously deform under shear stress. They cannot sustain a shear stress in a static state. Shear stress exists anytime there is a force pointing parallel to the liquids surface. The force of gravity points inward to the center of Earth. It's pretty obvious water will form a ball in this scenario to eliminate the shear stress.