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Born from audacity and sheer engineering prowess, the devastating power of XM913 makes even the Apache helicopter's 30mm M230 look modest by comparison. This is the most powerful chaingun ever constructed. | Interesting Engineering

In 1942, an Eastman Kodak investment in military technology took a strange turn. Dr. Harry Coovers team, pursuing the development of plastic gun sights, made an accidental discovery of a chemical formula called cyanoacrylate. It was a complete failure, a sticky nuisance that ruined valuable lab property. With no apparent use, this discovery was shelved and forgotten. Nine years later, the same frustrating technology resurfaced during a research project for jet canopies. This time, however, Dr. C