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First, We wanted to find a way to make a ping pong ball can be moved out of the glass of water and moving up to the desired point. Which of the terms was that no devices inside the red area or in A paper 4, so. We start by planning how that idea is a 22 oz glasses placed on different levels and areas make the glass, vertically falling down sleeping and can send a ping pong ball, moving to the point where we want to be. And here is a portfolio of us hurt?
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