When you throw a rock on a lake it makes circular visible waves. Can it be that the rock causes a “expansive bubble” underwater that we can only see its borders on the surface?
Like the bubble made of the impact from Matrix Revolution fight scene.
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Sign up to join this communityNo, these are surface gravity waves. The magnitude of the motion decays exponentially with depth, $y$, into the water as $exp(-2\pi y/\lambda)$ where $\lambda$ is the wavelength.
In contrast, semicircular traveling vortices can be created that have properties somewhat along the lines you are thinking.