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July 4 fireworks displays will be held all over the state of Minnesota, and they seem to get more elaborate every year.   

MPR's Cathy Wurzer talked with Dr. John Conkling, an adjunct professor of chemistry at Washington College in Maryland and the retired technical director of the American Pyrotechnics Association, about the newest trends in fireworks.

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July 4 fireworks displays will be held all over the state of Minnesota, and they seem to get more elaborate every year.

Fourth of July fireworks displays will be held all over the state of Minnesota.  It's a chance to see the latest pyrotechnic innovations.  Morning Edition host Cathy Wurzer talked with Dr. John Conkling, an adjunct professor of chemistry at Washington College in Maryland and the retired technical director of the American Pyrotechnics Association.

Fireworks always getting fancier

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