I have observed at my home that when there is a small puddle of water on a glass table and an inverted steel glass is kept on that puddle of water, the glass starts moving on its own after some time.
I was wondering how that was happening . I think it is due to the fluidity of water due to which the water flows and the glass also moves along with that flowing water. But then I am confused, how can such a small amount of water get adequate amount of energy to move a glass?
Is my reasoning correct? Or there is some more physics behind it?
(PS : I do not know the real reason behind this , so please excuse me if the tags I have given are incorrect.)