It won't sound like a ceramic bowl if you don't knock.
If you hit him with bamboo chopsticks, he will make a sound. If you hit him with an iron spoon, it will make a different sound. So, whatever you hit him, he will make different sounds.
The origin of porcelain bowls.
There are obvious differences in modeling, glaze color and water decoration of porcelain bowls in different periods.
Most bowls before the Tang Dynasty were glazed, straight and flat, and basically had no decorative patterns. In the Tang Dynasty, there were many bowls with straight mouth and sunflower mouth, and the lips protruded from the mouth, mostly with flat bottom, jade wall bottom and ring bottom. Glazed products are close to the bottom, and the refined products are full of glaze and simple in carving.
Bowls in the Song Dynasty were mostly hat-shaped, with smaller rims, and the diameter of the rims was almost one third of that of the rims. Glaze is mostly monochrome, such as black and white with sauce. Decorative patterns are drawn on the inner and outer walls or the inner bottom of the bowl by carving and printing. Compared with the Song Dynasty, the bowl of the Yuan Dynasty is characterized by its high and heavy rim, oblique and multi-skimming, and its cross section is eight-shaped. Printing and carving were used to decorate Ming bowls with many heart-shaped chopping boards and edges.