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article_snippet: Image shows early versions .
article_snippet: Experts will use a high speed camera to look at what is happening and refine the design.
article_snippet: Researchers will then conduct live tests with humans on a parabolic aircraft or ‘vomit comet’.
article_snippet: One unofficial test has already taken place.
article_snippet: the Maseeh College of Engineering and Computer Science at Portland State University geometry is the 'smart' part, which provides the fluids-control system without requiring pumps or centrifugal forces,' said Drew Wollman, who developed the system. '