| A couple of things, in no particular order;
The circular motion of the wave is caused by the constraint of the fish bowl. In the open ocean, that same wave would be stretched out like a normal ocean wave.
The wave, on edge would look much like a slow sine wave, and is the result of the motion involved in tectonic shifting. Tapping on the side of the fishbowl would produce the same sort of waves.
None of this is directly due to gravity.
Would someone with a better grasp of physics and waveform creation bail me out here... |