Why throw the stone into the water, the water surface has ripples in each round?

You go to the edge of the pond and throw the stone into the water. The water’s surface was flat as a mirror, immediately appearing ripples round and round, from where the falling stone diffused into four directions. Strangely speaking, the ripples didn’t jostle each other but were very orderly away from the point where the stone sank into the water. Why are they “keeping discipline” so much? Is someone commanding them? This is due to the specific physical properties of water.

Normally, the water’s surface seems to have a thin layer of elastic, the up and down tremors somewhere dragging the nearby water surface also shocked. That “water of proximity” pulls “the water next to it”, and so on. The result is that there are regular ripples of water in one circle, spreading one pulse away.
Each of the water molecules in the water wave is constantly shaking up and down. Suppose you could use a knife to cut across the surface of the water to examine its longitudinal profile, then you would detect it’s a regular sinusoidal curve. That proves that a water wave is a kind of wave. Water waves are a type of mechanical waves, waves that the naked eye can see. There are also invisible waves of all kinds, such as sound waves, ultrasonic waves, light waves, radio waves, etc. They are all “one-to-one” of the waves!