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Tornado in a Can - Slashdottech.slashdot.org › story › tornado-in-a-can
tech.slashdot.org
· Frank Polifka has a patent on his Windhexe device that creates a tornado force wind. Besides pulverizing concrete, it can pulverize small ...
A good stiff breeze for industry - Technology & science - Tech and...
www.nbcnews.com
With no more than a high school education and a creative way of looking at problems, Frank Polifka invented the “Tornado in a Can” — a system he says can...
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