Abstract
One of the marvels of Chinese ancient scientific discovery is the mythical vessel of Dragon Wash or Fish Wash. In simple terms, the Dragon Wash is a brass wash basin with two hollow handles. With the Dragon Wash half filled with water, whell the handles are rubbed with hands, quite regular stamling wave patterns appear on the water surface. With more vigorous rubbing, myriad of water jets emanate from the crests of the water waves. The phenomena is quite dramatic. In the following, we shall first formulate the problem, and carry out the linear analysis. Then we shall try to relate the solutions of the linear problem to the pattern of waves observed in reality. Finally we shall develop a nonlinear theory to account for the appearance of the low frequency, axisyinmetric waves.