Round? And how did you see this 'roundness' which is not the same as spherical? Airplane window? High mountain? It is alarming that anyone still thinks water can adhere to a ball spinning a 1000 miles an hour while suspended in a perfect vacuum - a vacuum held at bay, by a thin layer of air. I would not even entertain a conversation with you about it, until, and unless you could demonstrate to me how you would accomplish all of the above.